120212210112221 has 16 divisors (see below), whose sum is σ = 128275586587200. Its totient is φ = 112322548533888.

The previous prime is 120212210112217. The next prime is 120212210112229. The reversal of 120212210112221 is 122211012212021.

It is a cyclic number.

It is not a de Polignac number, because 120212210112221 - 2² = 120212210112217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120212210112193 and 120212210112202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212210112229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59517335 + ... + 61503963.

It is an arithmetic number, because the mean of its divisors is an integer number (8017224161700).

Almost surely, 2^{120212210112221} is an apocalyptic number.

It is an amenable number.

120212210112221 is a deficient number, since it is larger than the sum of its proper divisors (8063376474979).

120212210112221 is a wasteful number, since it uses less digits than its factorization.

120212210112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030348.

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

Adding to 120212210112221 its reverse (122211012212021), we get a palindrome (242423222324242).

The spelling of 120212210112221 in words is "one hundred twenty trillion, two hundred twelve billion, two hundred ten million, one hundred twelve thousand, two hundred twenty-one".