102122122202021 has 8 divisors (see below), whose sum is σ = 102359558649600. Its totient is φ = 101884688043120.

The previous prime is 102122122201961. The next prime is 102122122202041. The reversal of 102122122202021 is 120202221221201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102122122202021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102122122201984 and 102122122202002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102122122202041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116640275 + ... + 117512543.

It is an arithmetic number, because the mean of its divisors is an integer number (12794944831200).

Almost surely, 2^{102122122202021} is an apocalyptic number.

It is an amenable number.

102122122202021 is a deficient number, since it is larger than the sum of its proper divisors (237436447579).

102122122202021 is an equidigital number, since it uses as much as digits as its factorization.

102122122202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144339.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102122122202021 its reverse (120202221221201), we get a palindrome (222324343423222).

The spelling of 102122122202021 in words is "one hundred two trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred two thousand, twenty-one".