20002120224 has 48 divisors (see below), whose sum is σ = 52527470688. Its totient is φ = 6664591872.

The previous prime is 20002120141. The next prime is 20002120261. The reversal of 20002120224 is 42202120002.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194604 + ... + 279060.

It is an arithmetic number, because the mean of its divisors is an integer number (1094322306).

Almost surely, 2^20002120224 is an apocalyptic number.

20002120224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20002120224 is an abundant number, since it is smaller than the sum of its proper divisors (32525350464).

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

20002120224 is a wasteful number, since it uses less digits than its factorization.

20002120224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86937 (or 86929 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20002120224 its reverse (42202120002), we get a palindrome (62204240226).

The spelling of 20002120224 in words is "twenty billion, two million, one hundred twenty thousand, two hundred twenty-four".