220111111102020 has 48 divisors (see below), whose sum is σ = 616552140499008. Its totient is φ = 58673341111680.

The previous prime is 220111111101991. The next prime is 220111111102067. The reversal of 220111111102020 is 20201111111022.

It is a happy number.

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

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, 717194746 + ... + 717501585.

It is an arithmetic number, because the mean of its divisors is an integer number (12844836260396).

Almost surely, 2^{220111111102020} is an apocalyptic number.

220111111102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220111111102020 is an abundant number, since it is smaller than the sum of its proper divisors (396441029396988).

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

220111111102020 is a wasteful number, since it uses less digits than its factorization.

220111111102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434698900 (or 1434698898 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 220111111102020 its reverse (20201111111022), we get a palindrome (240312222213042).

The spelling of 220111111102020 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred eleven million, one hundred two thousand, twenty".