102020101212122 has 16 divisors (see below), whose sum is σ = 153665896172712. Its totient is φ = 50798137927680.

The previous prime is 102020101212053. The next prime is 102020101212137. The reversal of 102020101212122 is 221212101020201.

It can be written as a sum of positive squares in 4 ways, for example, as 77495608379281 + 24524492832841 = 8803159^2 + 4952221^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102020101212122.

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, 129986378 + ... + 130768874.

Almost surely, 2^{102020101212122} is an apocalyptic number.

102020101212122 is a deficient number, since it is larger than the sum of its proper divisors (51645794960590).

102020101212122 is a wasteful number, since it uses less digits than its factorization.

102020101212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053233.

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

Adding to 102020101212122 its reverse (221212101020201), we get a palindrome (323232202232323).

The spelling of 102020101212122 in words is "one hundred two trillion, twenty billion, one hundred one million, two hundred twelve thousand, one hundred twenty-two".