2122131412 has 24 divisors (see below), whose sum is σ = 3867478272. Its totient is φ = 1017744000.

The previous prime is 2122131391. The next prime is 2122131419. The reversal of 2122131412 is 2141312212.

It is a super-2 number, since 2×2122131412² = 9006883459594227488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2122131412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122131419) 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, 61714 + ... + 89737.

It is an arithmetic number, because the mean of its divisors is an integer number (161144928).

Almost surely, 2^2122131412 is an apocalyptic number.

It is an amenable number.

2122131412 is a deficient number, since it is larger than the sum of its proper divisors (1745346860).

2122131412 is a wasteful number, since it uses less digits than its factorization.

2122131412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151599 (or 151597 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 2122131412 is about 46066.5975735131. The cubic root of 2122131412 is about 1285.0620291334.

Adding to 2122131412 its reverse (2141312212), we get a palindrome (4263443624).

The spelling of 2122131412 in words is "two billion, one hundred twenty-two million, one hundred thirty-one thousand, four hundred twelve".