102012212010122 has 4 divisors (see below), whose sum is σ = 153018318015186. Its totient is φ = 51006106005060.

The previous prime is 102012212010119. The next prime is 102012212010143. The reversal of 102012212010122 is 221010212210201.

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., 67818008458561 + 34194203551561 = 8235169^2 + 5847581^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102012212010122.

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 as a sum of consecutive naturals, namely, 25503053002529 + ... + 25503053002532.

Almost surely, 2^{102012212010122} is an apocalyptic number.

102012212010122 is a deficient number, since it is larger than the sum of its proper divisors (51006106005064).

102012212010122 is an equidigital number, since it uses as much as digits as its factorization.

102012212010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51006106005063.

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

Adding to 102012212010122 its reverse (221010212210201), we get a palindrome (323022424220323).

The spelling of 102012212010122 in words is "one hundred two trillion, twelve billion, two hundred twelve million, ten thousand, one hundred twenty-two".