102220022201221 has 4 divisors (see below), whose sum is σ = 102220093131552. Its totient is φ = 102219951270892.

The previous prime is 102220022201203. The next prime is 102220022201261. The reversal of 102220022201221 is 122102220022201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102220022201221 - 2³¹ = 102217874717573 is a prime.

It is a super-2 number, since 2×102220022201221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220022201201) 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, 33257665 + ... + 36200998.

It is an arithmetic number, because the mean of its divisors is an integer number (25555023282888).

Almost surely, 2^{102220022201221} is an apocalyptic number.

It is an amenable number.

102220022201221 is a deficient number, since it is larger than the sum of its proper divisors (70930331).

102220022201221 is an equidigital number, since it uses as much as digits as its factorization.

102220022201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70930330.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 102220022201221 its reverse (122102220022201), we get a palindrome (224322242223422).

The spelling of 102220022201221 in words is "one hundred two trillion, two hundred twenty billion, twenty-two million, two hundred one thousand, two hundred twenty-one".