102220022221221 has 32 divisors (see below), whose sum is σ = 142331936198400. Its totient is φ = 65132112697344.

The previous prime is 102220022221169. The next prime is 102220022221237. The reversal of 102220022221221 is 122122220022201.

It is not a de Polignac number, because 102220022221221 - 2⁶ = 102220022221157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102220022221271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489002901 + ... + 489211893.

It is an arithmetic number, because the mean of its divisors is an integer number (4447873006200).

Almost surely, 2^{102220022221221} is an apocalyptic number.

It is an amenable number.

102220022221221 is a deficient number, since it is larger than the sum of its proper divisors (40111913977179).

102220022221221 is a wasteful number, since it uses less digits than its factorization.

102220022221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214605.

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

Adding to 102220022221221 its reverse (122122220022201), we get a palindrome (224342242243422).

The spelling of 102220022221221 in words is "one hundred two trillion, two hundred twenty billion, twenty-two million, two hundred twenty-one thousand, two hundred twenty-one".