220002021200 has 60 divisors (see below), whose sum is σ = 569212935228. Its totient is φ = 81231513600.

The previous prime is 220002021199. The next prime is 220002021221. The reversal of 220002021200 is 2120200022.

It can be written as a sum of positive squares in 6 ways, for example, as 74787904 + 219927233296 = 8648^2 + 468964^2 .

It is a congruent number.

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, 21148841 + ... + 21159240.

Almost surely, 2^220002021200 is an apocalyptic number.

220002021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220002021200 is an abundant number, since it is smaller than the sum of its proper divisors (349210914028).

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

220002021200 is a wasteful number, since it uses less digits than its factorization.

220002021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42308112 (or 42308101 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 220002021200 its reverse (2120200022), we get a palindrome (222122221222).

The spelling of 220002021200 in words is "two hundred twenty billion, two million, twenty-one thousand, two hundred".