220221022221102 has 32 divisors (see below), whose sum is σ = 505468455091200. Its totient is φ = 62657027239968.

The previous prime is 220221022221073. The next prime is 220221022221107. The reversal of 220221022221102 is 201122220122022.

It is a super-2 number, since 2×220221022221102² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221022221107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10969357477 + ... + 10969377552.

It is an arithmetic number, because the mean of its divisors is an integer number (15795889221600).

Almost surely, 2^{220221022221102} is an apocalyptic number.

220221022221102 is an abundant number, since it is smaller than the sum of its proper divisors (285247432870098).

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

220221022221102 is a wasteful number, since it uses less digits than its factorization.

220221022221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21938735280.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 220221022221102 its reverse (201122220122022), we get a palindrome (421343242343124).

The spelling of 220221022221102 in words is "two hundred twenty trillion, two hundred twenty-one billion, twenty-two million, two hundred twenty-one thousand, one hundred two".