11212556612 has 12 divisors (see below), whose sum is σ = 19816251756. Its totient is φ = 5550770400.

The previous prime is 11212556611. The next prime is 11212556639. The reversal of 11212556612 is 21665521211.

It can be written as a sum of positive squares in 2 ways, for example, as 9693583936 + 1518972676 = 98456^2 + 38974^2 .

It is not an unprimeable number, because it can be changed into a prime (11212556611) 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, 13876523 + ... + 13877330.

It is an arithmetic number, because the mean of its divisors is an integer number (1651354313).

Almost surely, 2^11212556612 is an apocalyptic number.

It is an amenable number.

11212556612 is a deficient number, since it is larger than the sum of its proper divisors (8603695144).

11212556612 is a wasteful number, since it uses less digits than its factorization.

11212556612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27753958 (or 27753956 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The spelling of 11212556612 in words is "eleven billion, two hundred twelve million, five hundred fifty-six thousand, six hundred twelve".