221022222022010 has 32 divisors (see below), whose sum is σ = 398212954278480. Its totient is φ = 88326014175232.

The previous prime is 221022222022009. The next prime is 221022222022061. The reversal of 221022222022010 is 10220222220122.

It can be written as a sum of positive squares in 8 ways, for example, as 110074572839449 + 110947649182561 = 10491643^2 + 10533169^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461476982 + ... + 461955678.

Almost surely, 2^{221022222022010} is an apocalyptic number.

221022222022010 is a deficient number, since it is larger than the sum of its proper divisors (177190732256470).

221022222022010 is a wasteful number, since it uses less digits than its factorization.

221022222022010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521890.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 221022222022010 its reverse (10220222220122), we get a palindrome (231242444242132).

The spelling of 221022222022010 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred twenty-two million, twenty-two thousand, ten".