121221020202022 has 16 divisors (see below), whose sum is σ = 195982710769440. Its totient is φ = 55901266120512.

The previous prime is 121221020202019. The next prime is 121221020202047. The reversal of 121221020202022 is 220202020122121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1954012122 + ... + 1954074157.

It is an arithmetic number, because the mean of its divisors is an integer number (12248919423090).

Almost surely, 2^{121221020202022} is an apocalyptic number.

121221020202022 is a deficient number, since it is larger than the sum of its proper divisors (74761690567418).

121221020202022 is a wasteful number, since it uses less digits than its factorization.

121221020202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908087487.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121221020202022 its reverse (220202020122121), we get a palindrome (341423040324143).

The spelling of 121221020202022 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty million, two hundred two thousand, twenty-two".