20432102220 has 36 divisors (see below), whose sum is σ = 61977377280. Its totient is φ = 5448560544.

The previous prime is 20432102189. The next prime is 20432102269. The reversal of 20432102220 is 2220123402.

20432102220 is a `hidden beast` number, since 2 + 0 + 432 + 10 + 2 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20432102220² (a number of 21 digits) contains 22 as substring.

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 = 20432102193 and 20432102202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56755660 + ... + 56756019.

Almost surely, 2^20432102220 is an apocalyptic number.

20432102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20432102220 is an abundant number, since it is smaller than the sum of its proper divisors (41545275060).

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

20432102220 is a wasteful number, since it uses less digits than its factorization.

20432102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113511694 (or 113511689 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20432102220 its reverse (2220123402), we get a palindrome (22652225622).

The spelling of 20432102220 in words is "twenty billion, four hundred thirty-two million, one hundred two thousand, two hundred twenty".