121220010122 has 32 divisors (see below), whose sum is σ = 185107600272. Its totient is φ = 59528577024.

The previous prime is 121220010113. The next prime is 121220010143. The reversal of 121220010122 is 221010022121.

It can be written as a sum of positive squares in 8 ways, for example, as 49230290641 + 71989719481 = 221879^2 + 268309^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121220010097 and 121220010106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16208648 + ... + 16216124.

Almost surely, 2^121220010122 is an apocalyptic number.

121220010122 is a deficient number, since it is larger than the sum of its proper divisors (63887590150).

121220010122 is a wasteful number, since it uses less digits than its factorization.

121220010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8202.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121220010122 its reverse (221010022121), we get a palindrome (342230032243).

The spelling of 121220010122 in words is "one hundred twenty-one billion, two hundred twenty million, ten thousand, one hundred twenty-two".