11221415532 has 18 divisors (see below), whose sum is σ = 28365244908. Its totient is φ = 3740471832.

The previous prime is 11221415531. The next prime is 11221415549. The reversal of 11221415532 is 23551412211.

It is a happy number.

11221415532 is a `hidden beast` number, since 1 + 122 + 1 + 4 + 1 + 5 + 532 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 11221415496 and 11221415505.

It is not an unprimeable number, because it can be changed into a prime (11221415531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155852958 + ... + 155853029.

Almost surely, 2^11221415532 is an apocalyptic number.

11221415532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11221415532 is an abundant number, since it is smaller than the sum of its proper divisors (17143829376).

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

11221415532 is a wasteful number, since it uses less digits than its factorization.

11221415532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311705997 (or 311705992 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

Adding to 11221415532 its reverse (23551412211), we get a palindrome (34772827743).

The spelling of 11221415532 in words is "eleven billion, two hundred twenty-one million, four hundred fifteen thousand, five hundred thirty-two".