121222012122211 has 96 divisors (see below), whose sum is σ = 174397111499520. Its totient is φ = 82597979923200.

The previous prime is 121222012122149. The next prime is 121222012122217. The reversal of 121222012122211 is 112221210222121.

It is not a de Polignac number, because 121222012122211 - 2¹¹ = 121222012120163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121222012122217) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3276517765 + ... + 3276554761.

It is an arithmetic number, because the mean of its divisors is an integer number (1816636578120).

Almost surely, 2^{121222012122211} is an apocalyptic number.

121222012122211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121222012122211 is a deficient number, since it is larger than the sum of its proper divisors (53175099377309).

121222012122211 is a wasteful number, since it uses less digits than its factorization.

121222012122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61665 (or 61658 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 121222012122211 its reverse (112221210222121), we get a palindrome (233443222344332).

The spelling of 121222012122211 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, twelve million, one hundred twenty-two thousand, two hundred eleven".