1212231654790 has 32 divisors (see below), whose sum is σ = 2362039950816. Its totient is φ = 445274081280.

The previous prime is 1212231654763. The next prime is 1212231654793. The reversal of 1212231654790 is 974561322121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212231654793) 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, 24132576 + ... + 24182755.

It is an arithmetic number, because the mean of its divisors is an integer number (73813748463).

Almost surely, 2^{1212231654790} is an apocalyptic number.

1212231654790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212231654790 is a deficient number, since it is larger than the sum of its proper divisors (1149808296026).

1212231654790 is a wasteful number, since it uses less digits than its factorization.

1212231654790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48315544.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 1212231654790 in words is "one trillion, two hundred twelve billion, two hundred thirty-one million, six hundred fifty-four thousand, seven hundred ninety".