2212110100020 has 48 divisors (see below), whose sum is σ = 6361311212928. Its totient is φ = 573952890240.

The previous prime is 2212110099967. The next prime is 2212110100021. The reversal of 2212110100020 is 200010112122.

It is a super-2 number, since 2×2212110100020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2212110099969 and 2212110100005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212110100021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498220776 + ... + 498225215.

It is an arithmetic number, because the mean of its divisors is an integer number (132527316936).

Almost surely, 2^{2212110100020} is an apocalyptic number.

2212110100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212110100020 is an abundant number, since it is smaller than the sum of its proper divisors (4149201112908).

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

2212110100020 is a wasteful number, since it uses less digits than its factorization.

2212110100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996446040 (or 996446038 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2212110100020 its reverse (200010112122), we get a palindrome (2412120212142).

The spelling of 2212110100020 in words is "two trillion, two hundred twelve billion, one hundred ten million, one hundred thousand, twenty".