221220100201022 has 16 divisors (see below), whose sum is σ = 357478900258032. Its totient is φ = 102066340771200.

The previous prime is 221220100200991. The next prime is 221220100201039. The reversal of 221220100201022 is 220102001022122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1468420604 + ... + 1468571247.

It is an arithmetic number, because the mean of its divisors is an integer number (22342431266127).

Almost surely, 2^{221220100201022} is an apocalyptic number.

221220100201022 is a deficient number, since it is larger than the sum of its proper divisors (136258800057010).

221220100201022 is a wasteful number, since it uses less digits than its factorization.

221220100201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936994763.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221220100201022 its reverse (220102001022122), we get a palindrome (441322101223144).

The spelling of 221220100201022 in words is "two hundred twenty-one trillion, two hundred twenty billion, one hundred million, two hundred one thousand, twenty-two".