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1212020212222 = 21514013311961
BaseRepresentation
bin10001101000110010000…
…010001100000111111110
311021212102202212011021201
4101220302002030013332
5124324204133242342
62324443331250114
7153364663551361
oct21506202140776
94255382764251
101212020212222
114280188a3486
12176a9314993a
138a3a69a8411
144293aac80d8
15217da0eedb7
hex11a3208c1fe

1212020212222 has 8 divisors (see below), whose sum is σ = 1830070254672. Its totient is φ = 601996794000.

The previous prime is 1212020212219. The next prime is 1212020212261. The reversal of 1212020212222 is 2222120202121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1212020212222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2006655679 + ... + 2006656282.

It is an arithmetic number, because the mean of its divisors is an integer number (228758781834).

Almost surely, 21212020212222 is an apocalyptic number.

1212020212222 is a deficient number, since it is larger than the sum of its proper divisors (618050042450).

1212020212222 is a wasteful number, since it uses less digits than its factorization.

1212020212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4013312114.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1212020212222 its reverse (2222120202121), we get a palindrome (3434140414343).

The spelling of 1212020212222 in words is "one trillion, two hundred twelve billion, twenty million, two hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 151 302 4013311961 8026623922 606010106111 1212020212222