102020201122122 has 32 divisors (see below), whose sum is σ = 226927268506560. Its totient is φ = 33974377138800.

The previous prime is 102020201122043. The next prime is 102020201122163. The reversal of 102020201122122 is 221221102020201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102020201122095 and 102020201122104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 898736293 + ... + 898849800.

It is an arithmetic number, because the mean of its divisors is an integer number (7091477140830).

Almost surely, 2^{102020201122122} is an apocalyptic number.

102020201122122 is an abundant number, since it is smaller than the sum of its proper divisors (124907067384438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102020201122122 is a wasteful number, since it uses less digits than its factorization.

102020201122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797587155 (or 1797587149 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102020201122122 its reverse (221221102020201), we get a palindrome (323241303142323).

The spelling of 102020201122122 in words is "one hundred two trillion, twenty billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty-two".