11121201012 has 24 divisors (see below), whose sum is σ = 25959689056. Its totient is φ = 3705607008.

The previous prime is 11121200957. The next prime is 11121201023. The reversal of 11121201012 is 21010212111.

It is a super-2 number, since 2×11121201012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150538 + ... + 211905.

Almost surely, 2^11121201012 is an apocalyptic number.

11121201012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11121201012 is an abundant number, since it is smaller than the sum of its proper divisors (14838488044).

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

11121201012 is a wasteful number, since it uses less digits than its factorization.

11121201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365007 (or 365005 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11121201012 its reverse (21010212111), we get a palindrome (32131413123).

The spelling of 11121201012 in words is "eleven billion, one hundred twenty-one million, two hundred one thousand, twelve".