102122121000122 has 4 divisors (see below), whose sum is σ = 153183181500186. Its totient is φ = 51061060500060.

The previous prime is 102122121000113. The next prime is 102122121000127. The reversal of 102122121000122 is 221000121221201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 100055027568001 + 2067093432121 = 10002751^2 + 1437739^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102122121000122.

It is not an unprimeable number, because it can be changed into a prime (102122121000127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530530250029 + ... + 25530530250032.

Almost surely, 2^{102122121000122} is an apocalyptic number.

102122121000122 is a deficient number, since it is larger than the sum of its proper divisors (51061060500064).

102122121000122 is an equidigital number, since it uses as much as digits as its factorization.

102122121000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51061060500063.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102122121000122 its reverse (221000121221201), we get a palindrome (323122242221323).

The spelling of 102122121000122 in words is "one hundred two trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-two", and thus it is an aban number.