11212533651 has 16 divisors (see below), whose sum is σ = 17268501888. Its totient is φ = 6395740800.

The previous prime is 11212533643. The next prime is 11212533653. The reversal of 11212533651 is 15633521211.

It is not a de Polignac number, because 11212533651 - 2³ = 11212533643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11212533653) 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, 9992785 + ... + 9993906.

It is an arithmetic number, because the mean of its divisors is an integer number (1079281368).

Almost surely, 2^11212533651 is an apocalyptic number.

11212533651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11212533651 is a deficient number, since it is larger than the sum of its proper divisors (6055968237).

11212533651 is a wasteful number, since it uses less digits than its factorization.

11212533651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19986722.

The product of its digits is 5400, while the sum is 30.

The spelling of 11212533651 in words is "eleven billion, two hundred twelve million, five hundred thirty-three thousand, six hundred fifty-one".