121210022020 has 24 divisors (see below), whose sum is σ = 255310066368. Its totient is φ = 48337528800.

The previous prime is 121210021987. The next prime is 121210022029. The reversal of 121210022020 is 20220012121.

It is a happy number.

121210022020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (121210022029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9148216 + ... + 9161455.

It is an arithmetic number, because the mean of its divisors is an integer number (10637919432).

Almost surely, 2^121210022020 is an apocalyptic number.

121210022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121210022020 is an abundant number, since it is smaller than the sum of its proper divisors (134100044348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121210022020 is a wasteful number, since it uses less digits than its factorization.

121210022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18310011 (or 18310009 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121210022020 its reverse (20220012121), we get a palindrome (141430034141).

The spelling of 121210022020 in words is "one hundred twenty-one billion, two hundred ten million, twenty-two thousand, twenty".