121221021222122 has 16 divisors (see below), whose sum is σ = 182059720333920. Its totient is φ = 60534479791632.

The previous prime is 121221021222107. The next prime is 121221021222131. The reversal of 121221021222122 is 221222120122121.

It is a super-2 number, since 2×121221021222122² (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, 425948 + ... + 15576375.

It is an arithmetic number, because the mean of its divisors is an integer number (11378732520870).

Almost surely, 2^{121221021222122} is an apocalyptic number.

121221021222122 is a deficient number, since it is larger than the sum of its proper divisors (60838699111798).

121221021222122 is a wasteful number, since it uses less digits than its factorization.

121221021222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16007077.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 121221021222122 its reverse (221222120122121), we get a palindrome (342443141344243).

The spelling of 121221021222122 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".