102110122221221 has 8 divisors (see below), whose sum is σ = 103121474469888. Its totient is φ = 101098777050000.

The previous prime is 102110122221187. The next prime is 102110122221229. The reversal of 102110122221221 is 122122221011201.

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

It is a cyclic number.

It is not a de Polignac number, because 102110122221221 - 2³⁸ = 101835244314277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102110122221193 and 102110122221202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102110122221229) 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, 30047996 + ... + 33273146.

It is an arithmetic number, because the mean of its divisors is an integer number (12890184308736).

Almost surely, 2^{102110122221221} is an apocalyptic number.

It is an amenable number.

102110122221221 is a deficient number, since it is larger than the sum of its proper divisors (1011352248667).

102110122221221 is a wasteful number, since it uses less digits than its factorization.

102110122221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3538723.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 102110122221221 its reverse (122122221011201), we get a palindrome (224232343232422).

The spelling of 102110122221221 in words is "one hundred two trillion, one hundred ten billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-one".