2101121012212 has 24 divisors (see below), whose sum is σ = 3687275533536. Its totient is φ = 1047617811168.

The previous prime is 2101121012197. The next prime is 2101121012233. The reversal of 2101121012212 is 2122101211012.

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, 1544583 + ... + 2566705.

It is an arithmetic number, because the mean of its divisors is an integer number (153636480564).

Almost surely, 2^{2101121012212} is an apocalyptic number.

It is an amenable number.

2101121012212 is a deficient number, since it is larger than the sum of its proper divisors (1586154521324).

2101121012212 is a wasteful number, since it uses less digits than its factorization.

2101121012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023567 (or 1023565 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2101121012212 its reverse (2122101211012), we get a palindrome (4223222223224).

The spelling of 2101121012212 in words is "two trillion, one hundred one billion, one hundred twenty-one million, twelve thousand, two hundred twelve".