2112102220020 has 144 divisors (see below), whose sum is σ = 6765473960448. Its totient is φ = 489319557120.

The previous prime is 2112102220001. The next prime is 2112102220031. The reversal of 2112102220020 is 200222012112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4459396 + ... + 4910235.

Almost surely, 2^{2112102220020} is an apocalyptic number.

2112102220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112102220020 is an abundant number, since it is smaller than the sum of its proper divisors (4653371740428).

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

2112102220020 is a wasteful number, since it uses less digits than its factorization.

2112102220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9369690 (or 9369671 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2112102220020 its reverse (200222012112), we get a palindrome (2312324232132).

The spelling of 2112102220020 in words is "two trillion, one hundred twelve billion, one hundred two million, two hundred twenty thousand, twenty".