101120121020 has 24 divisors (see below), whose sum is σ = 214336859184. Its totient is φ = 40070028416.

The previous prime is 101120121007. The next prime is 101120121029. The reversal of 101120121020 is 20121021101.

It is a junction number, because it is equal to n+sod(n) for n = 101120120992 and 101120121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101120121029) 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, 23624057 + ... + 23628336.

It is an arithmetic number, because the mean of its divisors is an integer number (8930702466).

Almost surely, 2^101120121020 is an apocalyptic number.

101120121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101120121020 is an abundant number, since it is smaller than the sum of its proper divisors (113216738164).

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

101120121020 is a wasteful number, since it uses less digits than its factorization.

101120121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47252509 (or 47252507 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101120121020 its reverse (20121021101), we get a palindrome (121241142121).

The spelling of 101120121020 in words is "one hundred one billion, one hundred twenty million, one hundred twenty-one thousand, twenty".