12220252233402 has 64 divisors (see below), whose sum is σ = 25125358325760. Its totient is φ = 3960003619200.

The previous prime is 12220252233389. The next prime is 12220252233403. The reversal of 12220252233402 is 20433225202221.

It is a self number, because there is not a number n which added to its sum of digits gives 12220252233402.

It is not an unprimeable number, because it can be changed into a prime (12220252233403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81348253 + ... + 81498335.

It is an arithmetic number, because the mean of its divisors is an integer number (392583723840).

Almost surely, 2^{12220252233402} is an apocalyptic number.

12220252233402 is an abundant number, since it is smaller than the sum of its proper divisors (12905106092358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12220252233402 is a wasteful number, since it uses less digits than its factorization.

12220252233402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151299.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 12220252233402 its reverse (20433225202221), we get a palindrome (32653477435623).

The spelling of 12220252233402 in words is "twelve trillion, two hundred twenty billion, two hundred fifty-two million, two hundred thirty-three thousand, four hundred two".