20112201102020 has 24 divisors (see below), whose sum is σ = 44720070686424. Its totient is φ = 7571652179456.

The previous prime is 20112201101987. The next prime is 20112201102053. The reversal of 20112201102020 is 2020110221102.

It is an interprime number because it is at equal distance from previous prime (20112201101987) and next prime (20112201102053).

It can be written as a sum of positive squares in 4 ways, for example, as 5797192645696 + 14315008456324 = 2407736^2 + 3783518^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20112201101986 and 20112201102004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29576765987 + ... + 29576766666.

It is an arithmetic number, because the mean of its divisors is an integer number (1863336278601).

Almost surely, 2^{20112201102020} is an apocalyptic number.

20112201102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112201102020 is an abundant number, since it is smaller than the sum of its proper divisors (24607869584404).

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

20112201102020 is a wasteful number, since it uses less digits than its factorization.

20112201102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59153532679 (or 59153532677 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20112201102020 its reverse (2020110221102), we get a palindrome (22132311323122).

The spelling of 20112201102020 in words is "twenty trillion, one hundred twelve billion, two hundred one million, one hundred two thousand, twenty".