2100202120212 has 24 divisors (see below), whose sum is σ = 5600538987456. Its totient is φ = 600057748608.

The previous prime is 2100202120147. The next prime is 2100202120217. The reversal of 2100202120212 is 2120212020012.

It is a junction number, because it is equal to n+sod(n) for n = 2100202120191 and 2100202120200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100202120217) 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, 12501203013 + ... + 12501203180.

It is an arithmetic number, because the mean of its divisors is an integer number (233355791144).

Almost surely, 2^{2100202120212} is an apocalyptic number.

It is an amenable number.

2100202120212 is an abundant number, since it is smaller than the sum of its proper divisors (3500336867244).

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

2100202120212 is a wasteful number, since it uses less digits than its factorization.

2100202120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25002406207 (or 25002406205 counting only the distinct ones).

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

Adding to 2100202120212 its reverse (2120212020012), we get a palindrome (4220414140224).

The spelling of 2100202120212 in words is "two trillion, one hundred billion, two hundred two million, one hundred twenty thousand, two hundred twelve".