1210101012122 has 4 divisors (see below), whose sum is σ = 1815151518186. Its totient is φ = 605050506060.

The previous prime is 1210101012121. The next prime is 1210101012167. The reversal of 1210101012122 is 2212101010121.

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., 836399873401 + 373701138721 = 914549^2 + 611311^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1210101012097 and 1210101012106.

It is not an unprimeable number, because it can be changed into a prime (1210101012121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302525253029 + ... + 302525253032.

Almost surely, 2^{1210101012122} is an apocalyptic number.

1210101012122 is a deficient number, since it is larger than the sum of its proper divisors (605050506064).

1210101012122 is an equidigital number, since it uses as much as digits as its factorization.

1210101012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605050506063.

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

Adding to 1210101012122 its reverse (2212101010121), we get a palindrome (3422202022243).

It can be divided in two parts, 12101010121 and 22, that multiplied together give a palindrome (266222222662).

The spelling of 1210101012122 in words is "one trillion, two hundred ten billion, one hundred one million, twelve thousand, one hundred twenty-two".