11551151212 has 12 divisors (see below), whose sum is σ = 20760853120. Its totient is φ = 5619478896.

The previous prime is 11551151167. The next prime is 11551151219. The reversal of 11551151212 is 21215115511.

It is not an unprimeable number, because it can be changed into a prime (11551151219) 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, 39024012 + ... + 39024307.

Almost surely, 2^11551151212 is an apocalyptic number.

It is an amenable number.

11551151212 is a deficient number, since it is larger than the sum of its proper divisors (9209701908).

11551151212 is a wasteful number, since it uses less digits than its factorization.

11551151212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78048360 (or 78048358 counting only the distinct ones).

The product of its digits is 500, while the sum is 25.

Adding to 11551151212 its reverse (21215115511), we get a palindrome (32766266723).

The spelling of 11551151212 in words is "eleven billion, five hundred fifty-one million, one hundred fifty-one thousand, two hundred twelve".