102122120221012 has 24 divisors (see below), whose sum is σ = 179933444497800. Its totient is φ = 50712642034560.

The previous prime is 102122120221007. The next prime is 102122120221057. The reversal of 102122120221012 is 210122021221201.

It can be written as a sum of positive squares in 4 ways, for example, as 19852068380356 + 82270051840656 = 4455566^2 + 9070284^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4387383 + ... + 14949694.

It is an arithmetic number, because the mean of its divisors is an integer number (7497226854075).

Almost surely, 2^{102122120221012} is an apocalyptic number.

It is an amenable number.

102122120221012 is a deficient number, since it is larger than the sum of its proper divisors (77811324276788).

102122120221012 is a wasteful number, since it uses less digits than its factorization.

102122120221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19346091 (or 19346089 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102122120221012 its reverse (210122021221201), we get a palindrome (312244141442213).

The spelling of 102122120221012 in words is "one hundred two trillion, one hundred twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, twelve".