222121101102212 has 12 divisors (see below), whose sum is σ = 418612844385036. Its totient is φ = 102517431277920.

The previous prime is 222121101102193. The next prime is 222121101102221. The reversal of 222121101102212 is 212201101121222.

It can be written as a sum of positive squares in 2 ways, for example, as 145941476229376 + 76179624872836 = 12080624^2 + 8728094^2 .

It is a super-2 number, since 2×222121101102212² (a number of 29 digits) contains 22 as substring.

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, 2135779818239 + ... + 2135779818342.

It is an arithmetic number, because the mean of its divisors is an integer number (34884403698753).

Almost surely, 2^{222121101102212} is an apocalyptic number.

It is an amenable number.

222121101102212 is a deficient number, since it is larger than the sum of its proper divisors (196491743282824).

222121101102212 is a wasteful number, since it uses less digits than its factorization.

222121101102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271559636598 (or 4271559636596 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222121101102212 its reverse (212201101121222), we get a palindrome (434322202223434).

The spelling of 222121101102212 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred one million, one hundred two thousand, two hundred twelve".