102210121010221 has 16 divisors (see below), whose sum is σ = 118236055601664. Its totient is φ = 86540614325424.

The previous prime is 102210121010213. The next prime is 102210121010227. The reversal of 102210121010221 is 122010121012201.

It is not a de Polignac number, because 102210121010221 - 2³ = 102210121010213 is a prime.

It is a super-3 number, since 3×102210121010221³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102210121010195 and 102210121010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102210121010227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8722015 + ... + 16747948.

It is an arithmetic number, because the mean of its divisors is an integer number (7389753475104).

Almost surely, 2^{102210121010221} is an apocalyptic number.

It is an amenable number.

102210121010221 is a deficient number, since it is larger than the sum of its proper divisors (16025934591443).

102210121010221 is an equidigital number, since it uses as much as digits as its factorization.

102210121010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25476960.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102210121010221 its reverse (122010121012201), we get a palindrome (224220242022422).

The spelling of 102210121010221 in words is "one hundred two trillion, two hundred ten billion, one hundred twenty-one million, ten thousand, two hundred twenty-one".