20334002220 has 72 divisors (see below), whose sum is σ = 70491212064. Its totient is φ = 4647771648.

The previous prime is 20334002177. The next prime is 20334002251. The reversal of 20334002220 is 2220043302.

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 = 20334002193 and 20334002202.

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, 8067789 + ... + 8070308.

It is an arithmetic number, because the mean of its divisors is an integer number (979044612).

Almost surely, 2^20334002220 is an apocalyptic number.

20334002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20334002220 is an abundant number, since it is smaller than the sum of its proper divisors (50157209844).

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

20334002220 is a wasteful number, since it uses less digits than its factorization.

20334002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16138119 (or 16138114 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 20334002220 its reverse (2220043302), we get a palindrome (22554045522).

The spelling of 20334002220 in words is "twenty billion, three hundred thirty-four million, two thousand, two hundred twenty".