20220111001000 has 32 divisors (see below), whose sum is σ = 47315059744680. Its totient is φ = 8088044400000.

The previous prime is 20220111000997. The next prime is 20220111001001. The reversal of 20220111001000 is 10011102202.

It can be written as a sum of positive squares in 4 ways, for example, as 5727760439076 + 14492350561924 = 2393274^2 + 3806882^2 .

It is a super-2 number, since 2×20220111001000² (a number of 27 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (20220111001001) 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, 10110054501 + ... + 10110056500.

Almost surely, 2^{20220111001000} is an apocalyptic number.

20220111001000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220111001000 is an abundant number, since it is smaller than the sum of its proper divisors (27094948743680).

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

20220111001000 is a wasteful number, since it uses less digits than its factorization.

20220111001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20220111022 (or 20220111008 counting only the distinct ones).

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

Adding to 20220111001000 its reverse (10011102202), we get a palindrome (20230122103202).

The spelling of 20220111001000 in words is "twenty trillion, two hundred twenty billion, one hundred eleven million, one thousand".