20002501224 has 48 divisors (see below), whose sum is σ = 54430228320. Its totient is φ = 6635895840.

The previous prime is 20002501213. The next prime is 20002501229. The reversal of 20002501224 is 42210520002.

It is a super-2 number, since 2×20002501224² (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 = 20002501197 and 20002501206.

It is not an unprimeable number, because it can be changed into a prime (20002501229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 643132 + ... + 673515.

It is an arithmetic number, because the mean of its divisors is an integer number (1133963090).

Almost surely, 2^20002501224 is an apocalyptic number.

20002501224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20002501224 is an abundant number, since it is smaller than the sum of its proper divisors (34427727096).

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

20002501224 is a wasteful number, since it uses less digits than its factorization.

20002501224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316870 (or 1316863 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The spelling of 20002501224 in words is "twenty billion, two million, five hundred one thousand, two hundred twenty-four".