111021202000020 has 48 divisors (see below), whose sum is σ = 334771624494720. Its totient is φ = 27328295876736.

The previous prime is 111021202000013. The next prime is 111021202000061. The reversal of 111021202000020 is 20000202120111.

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

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, 71167436400 + ... + 71167437959.

It is an arithmetic number, because the mean of its divisors is an integer number (6974408843640).

Almost surely, 2^{111021202000020} is an apocalyptic number.

111021202000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111021202000020 is an abundant number, since it is smaller than the sum of its proper divisors (223750422494700).

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

111021202000020 is a wasteful number, since it uses less digits than its factorization.

111021202000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142334874384 (or 142334874382 counting only the distinct ones).

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

Adding to 111021202000020 its reverse (20000202120111), we get a palindrome (131021404120131).

The spelling of 111021202000020 in words is "one hundred eleven trillion, twenty-one billion, two hundred two million, twenty", and thus it is an aban number.