11412205021 has 16 divisors (see below), whose sum is σ = 13741737984. Its totient is φ = 9265736304.

The previous prime is 11412205003. The next prime is 11412205027. The reversal of 11412205021 is 12050221411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11412205021 is a prime.

It is a super-2 number, since 2×11412205021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11412205021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11412205027) 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, 327511 + ... + 360676.

It is an arithmetic number, because the mean of its divisors is an integer number (858858624).

Almost surely, 2^11412205021 is an apocalyptic number.

It is an amenable number.

11412205021 is a deficient number, since it is larger than the sum of its proper divisors (2329532963).

11412205021 is a wasteful number, since it uses less digits than its factorization.

11412205021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688320.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 11412205021 its reverse (12050221411), we get a palindrome (23462426432).

The spelling of 11412205021 in words is "eleven billion, four hundred twelve million, two hundred five thousand, twenty-one".