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20212202100012 = 22313237154645887
BaseRepresentation
bin1001001100010000001010…
…01000000101010100101100
32122120021020010011002121020
410212020011020011110230
510122124042214200022
6110553205113334140
74154166132064326
oct446100510052454
978507203132536
1020212202100012
116492a4617760a
122325315707350
13b380055a8820
144dc3c0b28616
15250b7469c35c
hex12620520552c

20212202100012 has 48 divisors (see below), whose sum is σ = 50811058163712. Its totient is φ = 6216515991360.

The previous prime is 20212202100011. The next prime is 20212202100017. The reversal of 20212202100012 is 21000120221202.

It is a super-2 number, since 2×202122021000122 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20212202099964 and 20212202100000.

It is not an unprimeable number, because it can be changed into a prime (20212202100011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26953068 + ... + 27692819.

It is an arithmetic number, because the mean of its divisors is an integer number (1058563711744).

Almost surely, 220212202100012 is an apocalyptic number.

It is an amenable number.

20212202100012 is an abundant number, since it is smaller than the sum of its proper divisors (30598856063700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20212202100012 is a wasteful number, since it uses less digits than its factorization.

20212202100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54648278 (or 54648276 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20212202100012 its reverse (21000120221202), we get a palindrome (41212322321214).

The spelling of 20212202100012 in words is "twenty trillion, two hundred twelve billion, two hundred two million, one hundred thousand, twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 2371 4742 7113 9484 14226 28452 30823 61646 92469 123292 184938 369876 54645887 109291774 163937661 218583548 327875322 655750644 710396531 1420793062 2131189593 2841586124 4262379186 8524758372 129565398077 259130796154 388696194231 518261592308 777392388462 1554784776924 1684350175001 3368700350002 5053050525003 6737400700004 10106101050006 20212202100012