1213214012 has 6 divisors (see below), whose sum is σ = 2123124528. Its totient is φ = 606607004.

The previous prime is 1213213999. The next prime is 1213214021. The reversal of 1213214012 is 2104123121.

It is a super-2 number, since 2×1213214012² = 2943776477826272288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151651748 + ... + 151651755.

It is an arithmetic number, because the mean of its divisors is an integer number (353854088).

Almost surely, 2^1213214012 is an apocalyptic number.

It is an amenable number.

1213214012 is a deficient number, since it is larger than the sum of its proper divisors (909910516).

1213214012 is a wasteful number, since it uses less digits than its factorization.

1213214012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303303507 (or 303303505 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1213214012 is about 34831.2217988402. The cubic root of 1213214012 is about 1066.5448897870.

Adding to 1213214012 its reverse (2104123121), we get a palindrome (3317337133).

The spelling of 1213214012 in words is "one billion, two hundred thirteen million, two hundred fourteen thousand, twelve".