111000020221000 has 64 divisors (see below), whose sum is σ = 259991492183280. Its totient is φ = 44357026060800.

The previous prime is 111000020220977. The next prime is 111000020221033. The reversal of 111000020221000 is 122020000111.

It can be written as a sum of positive squares in 8 ways, for example, as 64945256735044 + 46054763485956 = 8058862^2 + 6786366^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 52694019 + ... + 54760018.

Almost surely, 2^{111000020221000} is an apocalyptic number.

111000020221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111000020221000 is an abundant number, since it is smaller than the sum of its proper divisors (148991471962280).

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

111000020221000 is a wasteful number, since it uses less digits than its factorization.

111000020221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107455091 (or 107455077 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 111000020221000 its reverse (122020000111), we get a palindrome (111122040221111).

The spelling of 111000020221000 in words is "one hundred eleven trillion, twenty million, two hundred twenty-one thousand".