2100120022212 has 24 divisors (see below), whose sum is σ = 5158189528800. Its totient is φ = 663195796416.

The previous prime is 2100120022183. The next prime is 2100120022213. The reversal of 2100120022212 is 2122200210012.

It is a junction number, because it is equal to n+sod(n) for n = 2100120022191 and 2100120022200.

It is not an unprimeable number, because it can be changed into a prime (2100120022213) 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, 4605526137 + ... + 4605526592.

It is an arithmetic number, because the mean of its divisors is an integer number (214924563700).

Almost surely, 2^{2100120022212} is an apocalyptic number.

It is an amenable number.

2100120022212 is an abundant number, since it is smaller than the sum of its proper divisors (3058069506588).

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

2100120022212 is a wasteful number, since it uses less digits than its factorization.

2100120022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9211052755 (or 9211052753 counting only the distinct ones).

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

Adding to 2100120022212 its reverse (2122200210012), we get a palindrome (4222320232224).

The spelling of 2100120022212 in words is "two trillion, one hundred billion, one hundred twenty million, twenty-two thousand, two hundred twelve".