11021155412 has 12 divisors (see below), whose sum is σ = 19289380320. Its totient is φ = 5509903896.

The previous prime is 11021155399. The next prime is 11021155417. The reversal of 11021155412 is 21455112011.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021155417) 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, 130712 + ... + 197807.

It is an arithmetic number, because the mean of its divisors is an integer number (1607448360).

Almost surely, 2^11021155412 is an apocalyptic number.

It is an amenable number.

11021155412 is a deficient number, since it is larger than the sum of its proper divisors (8268224908).

11021155412 is a wasteful number, since it uses less digits than its factorization.

11021155412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336910 (or 336908 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 11021155412 its reverse (21455112011), we get a palindrome (32476267423).

The spelling of 11021155412 in words is "eleven billion, twenty-one million, one hundred fifty-five thousand, four hundred twelve".