110221001000020 has 24 divisors (see below), whose sum is σ = 231503313613824. Its totient is φ = 44080931540256.

The previous prime is 110221000999973. The next prime is 110221001000027. The reversal of 110221001000020 is 20000100122011.

It is a super-2 number, since 2×110221001000020² (a number of 29 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 110221000999970 and 110221001000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110221001000027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466682724 + ... + 466918843.

It is an arithmetic number, because the mean of its divisors is an integer number (9645971400576).

Almost surely, 2^{110221001000020} is an apocalyptic number.

110221001000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110221001000020 is an abundant number, since it is smaller than the sum of its proper divisors (121282312613804).

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

110221001000020 is a wasteful number, since it uses less digits than its factorization.

110221001000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933607479 (or 933607477 counting only the distinct ones).

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

Adding to 110221001000020 its reverse (20000100122011), we get a palindrome (130221101122031).

The spelling of 110221001000020 in words is "one hundred ten trillion, two hundred twenty-one billion, one million, twenty", and thus it is an aban number.