2121127211212 has 48 divisors (see below), whose sum is σ = 3922211381760. Its totient is φ = 1002067843392.

The previous prime is 2121127211201. The next prime is 2121127211219.

It is a happy number.

2121127211212 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2121127211212² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121127211219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47448223 + ... + 47492905.

It is an arithmetic number, because the mean of its divisors is an integer number (81712737120).

Almost surely, 2^{2121127211212} is an apocalyptic number.

It is an amenable number.

2121127211212 is a deficient number, since it is larger than the sum of its proper divisors (1801084170548).

2121127211212 is a wasteful number, since it uses less digits than its factorization.

2121127211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53470 (or 53468 counting only the distinct ones).

The product of its digits is 448, while the sum is 25.

The spelling of 2121127211212 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-seven million, two hundred eleven thousand, two hundred twelve".