2100102020212 has 24 divisors (see below), whose sum is σ = 4200718536000. Its totient is φ = 899933473920.

The previous prime is 2100102020147. The next prime is 2100102020221. The reversal of 2100102020212 is 2120202010012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2100102020192 and 2100102020201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4360837 + ... + 4818412.

It is an arithmetic number, because the mean of its divisors is an integer number (175029939000).

Almost surely, 2^{2100102020212} is an apocalyptic number.

It is an amenable number.

2100102020212 is an abundant number, since it is smaller than the sum of its proper divisors (2100616515788).

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

2100102020212 is a wasteful number, since it uses less digits than its factorization.

2100102020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9187431 (or 9187429 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2100102020212 its reverse (2120202010012), we get a palindrome (4220304030224).

The spelling of 2100102020212 in words is "two trillion, one hundred billion, one hundred two million, twenty thousand, two hundred twelve".