121022122231020 has 144 divisors (see below), whose sum is σ = 359488502926560. Its totient is φ = 30415594217472.

The previous prime is 121022122231007. The next prime is 121022122231097. The reversal of 121022122231020 is 20132221220121.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10294635 + ... + 18655394.

It is an arithmetic number, because the mean of its divisors is an integer number (2496447936990).

Almost surely, 2^{121022122231020} is an apocalyptic number.

121022122231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121022122231020 is an abundant number, since it is smaller than the sum of its proper divisors (238466380695540).

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

121022122231020 is a wasteful number, since it uses less digits than its factorization.

121022122231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28950272 (or 28950251 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 121022122231020 its reverse (20132221220121), we get a palindrome (141154343451141).

The spelling of 121022122231020 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred twenty-two million, two hundred thirty-one thousand, twenty".