221011200112020 has 48 divisors (see below), whose sum is σ = 619779034788480. Its totient is φ = 58846065318016.

The previous prime is 221011200111973. The next prime is 221011200112033. The reversal of 221011200112020 is 20211002110122.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 2820420240 + ... + 2820498599.

It is an arithmetic number, because the mean of its divisors is an integer number (12912063224760).

Almost surely, 2^{221011200112020} is an apocalyptic number.

221011200112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221011200112020 is an abundant number, since it is smaller than the sum of its proper divisors (398767834676460).

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

221011200112020 is a wasteful number, since it uses less digits than its factorization.

221011200112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640919504 (or 5640919502 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221011200112020 its reverse (20211002110122), we get a palindrome (241222202222142).

The spelling of 221011200112020 in words is "two hundred twenty-one trillion, eleven billion, two hundred million, one hundred twelve thousand, twenty".