101120121101020 has 48 divisors (see below), whose sum is σ = 242703633650688. Its totient is φ = 34667563947840.

The previous prime is 101120121100981. The next prime is 101120121101057. The reversal of 101120121101020 is 20101121021101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20608726 + ... + 25039165.

It is an arithmetic number, because the mean of its divisors is an integer number (5056325701056).

Almost surely, 2^{101120121101020} is an apocalyptic number.

101120121101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101120121101020 is an abundant number, since it is smaller than the sum of its proper divisors (141583512549668).

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

101120121101020 is a wasteful number, since it uses less digits than its factorization.

101120121101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45663730 (or 45663728 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101120121101020 its reverse (20101121021101), we get a palindrome (121221242122121).

The spelling of 101120121101020 in words is "one hundred one trillion, one hundred twenty billion, one hundred twenty-one million, one hundred one thousand, twenty".