20002202240 has 32 divisors (see below), whose sum is σ = 47817766260. Its totient is φ = 8000880640.

The previous prime is 20002202239. The next prime is 20002202273. The reversal of 20002202240 is 4220220002.

It can be written as a sum of positive squares in 2 ways, for example, as 19998485056 + 3717184 = 141416^2 + 1928^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×20002202240² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15626081 + ... + 15627360.

Almost surely, 2^20002202240 is an apocalyptic number.

20002202240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002202240 is an abundant number, since it is smaller than the sum of its proper divisors (27815564020).

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

20002202240 is an equidigital number, since it uses as much as digits as its factorization.

20002202240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31253460 (or 31253448 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 20002202240 its reverse (4220220002), we get a palindrome (24222422242).

The spelling of 20002202240 in words is "twenty billion, two million, two hundred two thousand, two hundred forty".