22511032151212 has 24 divisors (see below), whose sum is σ = 45503583708240. Its totient is φ = 9630388085760.

The previous prime is 22511032151197. The next prime is 22511032151213. The reversal of 22511032151212 is 21215123011522.

It is not an unprimeable number, because it can be changed into a prime (22511032151213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15047480637 + ... + 15047482132.

It is an arithmetic number, because the mean of its divisors is an integer number (1895982654510).

Almost surely, 2^{22511032151212} is an apocalyptic number.

22511032151212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22511032151212 is an abundant number, since it is smaller than the sum of its proper divisors (22992551557028).

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

22511032151212 is a wasteful number, since it uses less digits than its factorization.

22511032151212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30094962801 (or 30094962799 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 22511032151212 its reverse (21215123011522), we get a palindrome (43726155162734).

The spelling of 22511032151212 in words is "twenty-two trillion, five hundred eleven billion, thirty-two million, one hundred fifty-one thousand, two hundred twelve".