121121011022 has 32 divisors (see below), whose sum is σ = 206956249344. Its totient is φ = 52625425600.

The previous prime is 121121011019. The next prime is 121121011061. The reversal of 121121011022 is 220110121121.

It is a junction number, because it is equal to n+sod(n) for n = 121121010988 and 121121011006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 668573 + ... + 830199.

It is an arithmetic number, because the mean of its divisors is an integer number (6467382792).

Almost surely, 2^121121011022 is an apocalyptic number.

121121011022 is a deficient number, since it is larger than the sum of its proper divisors (85835238322).

121121011022 is a wasteful number, since it uses less digits than its factorization.

121121011022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163144.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121121011022 its reverse (220110121121), we get a palindrome (341231132143).

The spelling of 121121011022 in words is "one hundred twenty-one billion, one hundred twenty-one million, eleven thousand, twenty-two".