20122101110020 has 96 divisors (see below), whose sum is σ = 52269239232000. Its totient is φ = 6336311629824.

The previous prime is 20122101110011. The next prime is 20122101110029. The reversal of 20122101110020 is 2001110122102.

It is an interprime number because it is at equal distance from previous prime (20122101110011) and next prime (20122101110029).

It is a super-2 number, since 2×20122101110020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (20122101110029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27416965 + ... + 28141324.

It is an arithmetic number, because the mean of its divisors is an integer number (544471242000).

Almost surely, 2^{20122101110020} is an apocalyptic number.

20122101110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122101110020 is an abundant number, since it is smaller than the sum of its proper divisors (32147138121980).

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

20122101110020 is a wasteful number, since it uses less digits than its factorization.

20122101110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55558517 (or 55558515 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20122101110020 its reverse (2001110122102), we get a palindrome (22123211232122).

The spelling of 20122101110020 in words is "twenty trillion, one hundred twenty-two billion, one hundred one million, one hundred ten thousand, twenty".