22011121102212 has 72 divisors (see below), whose sum is σ = 61552226054592. Its totient is φ = 6576092510400.

The previous prime is 22011121102189. The next prime is 22011121102237. The reversal of 22011121102212 is 21220112111022.

22011121102212 is a `hidden beast` number, since 220 + 1 + 11 + 211 + 0 + 221 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 391405963 + ... + 391462194.

It is an arithmetic number, because the mean of its divisors is an integer number (854892028536).

Almost surely, 2^{22011121102212} is an apocalyptic number.

22011121102212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22011121102212 is an abundant number, since it is smaller than the sum of its proper divisors (39541104952380).

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

22011121102212 is a wasteful number, since it uses less digits than its factorization.

22011121102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782868249 (or 782868244 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22011121102212 its reverse (21220112111022), we get a palindrome (43231233213234).

The spelling of 22011121102212 in words is "twenty-two trillion, eleven billion, one hundred twenty-one million, one hundred two thousand, two hundred twelve".