15211151412 has 12 divisors (see below), whose sum is σ = 35492686656. Its totient is φ = 5070383800.

The previous prime is 15211151381. The next prime is 15211151419. The reversal of 15211151412 is 21415111251.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15211151419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633797964 + ... + 633797987.

It is an arithmetic number, because the mean of its divisors is an integer number (2957723888).

Almost surely, 2^15211151412 is an apocalyptic number.

15211151412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15211151412 is an abundant number, since it is smaller than the sum of its proper divisors (20281535244).

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

15211151412 is a wasteful number, since it uses less digits than its factorization.

15211151412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267595958 (or 1267595956 counting only the distinct ones).

The product of its digits is 400, while the sum is 24.

Adding to 15211151412 its reverse (21415111251), we get a palindrome (36626262663).

The spelling of 15211151412 in words is "fifteen billion, two hundred eleven million, one hundred fifty-one thousand, four hundred twelve".