111021220220010 has 32 divisors (see below), whose sum is σ = 266637388343040. Its totient is φ = 29584940968128.

The previous prime is 111021220219967. The next prime is 111021220220011. The reversal of 111021220220010 is 10022022120111.

It is a super-2 number, since 2×111021220220010² (a number of 29 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (111021220220011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1294816242 + ... + 1294901981.

It is an arithmetic number, because the mean of its divisors is an integer number (8332418385720).

Almost surely, 2^{111021220220010} is an apocalyptic number.

111021220220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111021220220010 is an abundant number, since it is smaller than the sum of its proper divisors (155616168123030).

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

111021220220010 is a wasteful number, since it uses less digits than its factorization.

111021220220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589719662.

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

Adding to 111021220220010 its reverse (10022022120111), we get a palindrome (121043242340121).

The spelling of 111021220220010 in words is "one hundred eleven trillion, twenty-one billion, two hundred twenty million, two hundred twenty thousand, ten".