221112220121002 has 16 divisors (see below), whose sum is σ = 379049764851072. Its totient is φ = 94762318890960.

The previous prime is 221112220120963. The next prime is 221112220121021. The reversal of 221112220121002 is 200121022211122.

It is a super-2 number, since 2×221112220121002² (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 7 ways as a sum of consecutive naturals, for example, 22535227 + ... + 30823057.

It is an arithmetic number, because the mean of its divisors is an integer number (23690610303192).

Almost surely, 2^{221112220121002} is an apocalyptic number.

221112220121002 is a deficient number, since it is larger than the sum of its proper divisors (157937544730070).

221112220121002 is a wasteful number, since it uses less digits than its factorization.

221112220121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10193493.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221112220121002 its reverse (200121022211122), we get a palindrome (421233242332124).

The spelling of 221112220121002 in words is "two hundred twenty-one trillion, one hundred twelve billion, two hundred twenty million, one hundred twenty-one thousand, two".