102120001212122 has 4 divisors (see below), whose sum is σ = 153180001818186. Its totient is φ = 51060000606060.

The previous prime is 102120001212113. The next prime is 102120001212143. The reversal of 102120001212122 is 221212100021201.

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., 93821908641241 + 8298092570881 = 9686171^2 + 2880641^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102120001212122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530000303029 + ... + 25530000303032.

Almost surely, 2^{102120001212122} is an apocalyptic number.

102120001212122 is a deficient number, since it is larger than the sum of its proper divisors (51060000606064).

102120001212122 is an equidigital number, since it uses as much as digits as its factorization.

102120001212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51060000606063.

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

Adding to 102120001212122 its reverse (221212100021201), we get a palindrome (323332101233323).

The spelling of 102120001212122 in words is "one hundred two trillion, one hundred twenty billion, one million, two hundred twelve thousand, one hundred twenty-two".