11432221020 has 72 divisors (see below), whose sum is σ = 37830265200. Its totient is φ = 2771447040.

The previous prime is 11432220997. The next prime is 11432221033. The reversal of 11432221020 is 2012223411.

It is a happy number.

11432221020 is a `hidden beast` number, since 1 + 1 + 432 + 2 + 210 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11432220984 and 11432221002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2884945 + ... + 2888904.

It is an arithmetic number, because the mean of its divisors is an integer number (525420350).

Almost surely, 2^11432221020 is an apocalyptic number.

11432221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11432221020 is an abundant number, since it is smaller than the sum of its proper divisors (26398044180).

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

11432221020 is a wasteful number, since it uses less digits than its factorization.

11432221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5773875 (or 5773870 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11432221020 its reverse (2012223411), we get a palindrome (13444444431).

The spelling of 11432221020 in words is "eleven billion, four hundred thirty-two million, two hundred twenty-one thousand, twenty".