1212101010122 has 4 divisors (see below), whose sum is σ = 1818151515186. Its totient is φ = 606050505060.

The previous prime is 1212101010079. The next prime is 1212101010139. The reversal of 1212101010122 is 2210101012121.

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., 778875086521 + 433225923601 = 882539^2 + 658199^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1212101010097 and 1212101010106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303025252529 + ... + 303025252532.

Almost surely, 2^{1212101010122} is an apocalyptic number.

1212101010122 is a deficient number, since it is larger than the sum of its proper divisors (606050505064).

1212101010122 is an equidigital number, since it uses as much as digits as its factorization.

1212101010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606050505063.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212101010122 its reverse (2210101012121), we get a palindrome (3422202022243).

The spelling of 1212101010122 in words is "one trillion, two hundred twelve billion, one hundred one million, ten thousand, one hundred twenty-two".