101121021220220 has 24 divisors (see below), whose sum is σ = 213760463407008. Its totient is φ = 40180538232000.

The previous prime is 101121021220211. The next prime is 101121021220231. The reversal of 101121021220220 is 22022120121101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16741887911 + ... + 16741893950.

It is an arithmetic number, because the mean of its divisors is an integer number (8906685975292).

Almost surely, 2^{101121021220220} is an apocalyptic number.

101121021220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101121021220220 is an abundant number, since it is smaller than the sum of its proper divisors (112639442186788).

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

101121021220220 is a wasteful number, since it uses less digits than its factorization.

101121021220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33483782021 (or 33483782019 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101121021220220 its reverse (22022120121101), we get a palindrome (123143141341321).

The spelling of 101121021220220 in words is "one hundred one trillion, one hundred twenty-one billion, twenty-one million, two hundred twenty thousand, two hundred twenty".