121023222220020 has 24 divisors (see below), whose sum is σ = 338865022216224. Its totient is φ = 32272859258656.

The previous prime is 121023222219853. The next prime is 121023222220127. The reversal of 121023222220020 is 20022222320121.

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 7 ways as a sum of consecutive naturals, for example, 1008526851774 + ... + 1008526851893.

It is an arithmetic number, because the mean of its divisors is an integer number (14119375925676).

Almost surely, 2^{121023222220020} is an apocalyptic number.

121023222220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121023222220020 is an abundant number, since it is smaller than the sum of its proper divisors (217841799996204).

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

121023222220020 is a wasteful number, since it uses less digits than its factorization.

121023222220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017053703679 (or 2017053703677 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 121023222220020 its reverse (20022222320121), we get a palindrome (141045444540141).

The spelling of 121023222220020 in words is "one hundred twenty-one trillion, twenty-three billion, two hundred twenty-two million, two hundred twenty thousand, twenty".