102211012120221 has 24 divisors (see below), whose sum is σ = 151642795668000. Its totient is φ = 66292717826016.

The previous prime is 102211012120219. The next prime is 102211012120241. The reversal of 102211012120221 is 122021210112201.

102211012120221 is a `hidden beast` number, since 1 + 0 + 221 + 10 + 1 + 212 + 0 + 221 = 666.

It is not a de Polignac number, because 102211012120221 - 2¹ = 102211012120219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102211012120194 and 102211012120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211012120241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11121415 + ... + 18113748.

It is an arithmetic number, because the mean of its divisors is an integer number (6318449819500).

Almost surely, 2^{102211012120221} is an apocalyptic number.

It is an amenable number.

102211012120221 is a deficient number, since it is larger than the sum of its proper divisors (49431783547779).

102211012120221 is a wasteful number, since it uses less digits than its factorization.

102211012120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29245705 (or 29245702 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102211012120221 its reverse (122021210112201), we get a palindrome (224232222232422).

The spelling of 102211012120221 in words is "one hundred two trillion, two hundred eleven billion, twelve million, one hundred twenty thousand, two hundred twenty-one".