121011220222112 has 48 divisors (see below), whose sum is σ = 260584847863200. Its totient is φ = 54859967850240.

The previous prime is 121011220222111. The next prime is 121011220222127. The reversal of 121011220222112 is 211222022110121.

It is a super-2 number, since 2×121011220222112² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121011220222111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453404687 + ... + 453671502.

It is an arithmetic number, because the mean of its divisors is an integer number (5428850997150).

Almost surely, 2^{121011220222112} is an apocalyptic number.

It is an amenable number.

121011220222112 is an abundant number, since it is smaller than the sum of its proper divisors (139573627641088).

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

121011220222112 is a wasteful number, since it uses less digits than its factorization.

121011220222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907076589 (or 907076581 counting only the distinct ones).

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

Adding to 121011220222112 its reverse (211222022110121), we get a palindrome (332233242332233).

The spelling of 121011220222112 in words is "one hundred twenty-one trillion, eleven billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twelve".