101002210120020 has 96 divisors (see below), whose sum is σ = 310735380533760. Its totient is φ = 24309230405760.

The previous prime is 101002210119947. The next prime is 101002210120039. The reversal of 101002210120020 is 20021012200101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 101002210119978 and 101002210120005.

It is a congruent number.

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, 550389022 + ... + 550572501.

It is an arithmetic number, because the mean of its divisors is an integer number (3236826880560).

Almost surely, 2^{101002210120020} is an apocalyptic number.

101002210120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101002210120020 is an abundant number, since it is smaller than the sum of its proper divisors (209733170413740).

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

101002210120020 is a wasteful number, since it uses less digits than its factorization.

101002210120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100961685 (or 1100961683 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101002210120020 its reverse (20021012200101), we get a palindrome (121023222320121).

The spelling of 101002210120020 in words is "one hundred one trillion, two billion, two hundred ten million, one hundred twenty thousand, twenty".