222122012221012 has 12 divisors (see below), whose sum is σ = 388757035780596. Its totient is φ = 111048573426560.

The previous prime is 222122012220917. The next prime is 222122012221063. The reversal of 222122012221012 is 210122210221222.

It can be written as a sum of positive squares in 2 ways, for example, as 100319975552196 + 121802036668816 = 10015986^2 + 11036396^2 .

It is a super-2 number, since 2×222122012221012² (a number of 29 digits) contains 22 as substring.

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, 3108130789 + ... + 3108202252.

It is an arithmetic number, because the mean of its divisors is an integer number (32396419648383).

Almost surely, 2^{222122012221012} is an apocalyptic number.

It is an amenable number.

222122012221012 is a deficient number, since it is larger than the sum of its proper divisors (166635023559584).

222122012221012 is a wasteful number, since it uses less digits than its factorization.

222122012221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6216341978 (or 6216341976 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 222122012221012 its reverse (210122210221222), we get a palindrome (432244222442234).

The spelling of 222122012221012 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, twelve million, two hundred twenty-one thousand, twelve".