2121122211212 has 12 divisors (see below), whose sum is σ = 3748715987856. Its totient is φ = 1050060500400.

The previous prime is 2121122211199. The next prime is 2121122211217.

2121122211212 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (2121122211217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2625150848 + ... + 2625151655.

It is an arithmetic number, because the mean of its divisors is an integer number (312392998988).

Almost surely, 2^{2121122211212} is an apocalyptic number.

It is an amenable number.

2121122211212 is a deficient number, since it is larger than the sum of its proper divisors (1627593776644).

2121122211212 is a wasteful number, since it uses less digits than its factorization.

2121122211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250302608 (or 5250302606 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

The spelling of 2121122211212 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred eleven thousand, two hundred twelve".