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22010202012 = 2239277197713
BaseRepresentation
bin10100011111111010…
…010000011110011100
32002210221002010000010
4110133322100132130
5330034102431022
614040015003220
71406301426111
oct243772203634
962727063003
1022010202012
1193752045a7
124323209510
1320c9cb4796
1410cb278908
1588c49650c
hex51fe9079c

22010202012 has 24 divisors (see below), whose sum is σ = 51362933776. Its totient is φ = 7335906048.

The previous prime is 22010201981. The next prime is 22010202013. The reversal of 22010202012 is 21020201022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010202013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12468 + ... + 210180.

Almost surely, 222010202012 is an apocalyptic number.

It is an amenable number.

22010202012 is an abundant number, since it is smaller than the sum of its proper divisors (29352731764).

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

22010202012 is a wasteful number, since it uses less digits than its factorization.

22010202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206997 (or 206995 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22010202012 its reverse (21020201022), we get a palindrome (43030403034).

The spelling of 22010202012 in words is "twenty-two billion, ten million, two hundred two thousand, twelve".

Divisors: 1 2 3 4 6 12 9277 18554 27831 37108 55662 111324 197713 395426 593139 790852 1186278 2372556 1834183501 3668367002 5502550503 7336734004 11005101006 22010202012