221000022010 has 8 divisors (see below), whose sum is σ = 397800039636. Its totient is φ = 88400008800.

The previous prime is 221000021993. The next prime is 221000022017. The reversal of 221000022010 is 10220000122.

It can be written as a sum of positive squares in 2 ways, for example, as 218282380849 + 2717641161 = 467207^2 + 52131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 22100002201 = 221000022010 / (2 + 2 + 1 + 0 + 0 + 0 + 0 + 2 + 2 + 0 + 1 + 0).

It is not an unprimeable number, because it can be changed into a prime (221000022017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11050001091 + ... + 11050001110.

Almost surely, 2^221000022010 is an apocalyptic number.

221000022010 is a deficient number, since it is larger than the sum of its proper divisors (176800017626).

221000022010 is a wasteful number, since it uses less digits than its factorization.

221000022010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22100002208.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 221000022010 its reverse (10220000122), we get a palindrome (231220022132).

The spelling of 221000022010 in words is "two hundred twenty-one billion, twenty-two thousand, ten".