101121100122020 has 96 divisors (see below), whose sum is σ = 235501556685696. Its totient is φ = 36161647257600.

The previous prime is 101121100122001. The next prime is 101121100122047. The reversal of 101121100122020 is 20221001121101.

It is a junction number, because it is equal to n+sod(n) for n = 101121100121986 and 101121100122004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70374479 + ... + 71797001.

It is an arithmetic number, because the mean of its divisors is an integer number (2453141215476).

Almost surely, 2^{101121100122020} is an apocalyptic number.

101121100122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101121100122020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117750778342848).

101121100122020 is an abundant number, since it is smaller than the sum of its proper divisors (134380456563676).

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

101121100122020 is a wasteful number, since it uses less digits than its factorization.

101121100122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427901 (or 1427899 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101121100122020 its reverse (20221001121101), we get a palindrome (121342101243121).

The spelling of 101121100122020 in words is "one hundred one trillion, one hundred twenty-one billion, one hundred million, one hundred twenty-two thousand, twenty".