1210121131022 has 4 divisors (see below), whose sum is σ = 1815181696536. Its totient is φ = 605060565510.

The previous prime is 1210121130971. The next prime is 1210121131147. The reversal of 1210121131022 is 2201311210121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302530282754 + ... + 302530282757.

It is an arithmetic number, because the mean of its divisors is an integer number (453795424134).

Almost surely, 2^{1210121131022} is an apocalyptic number.

1210121131022 is a deficient number, since it is larger than the sum of its proper divisors (605060565514).

1210121131022 is an equidigital number, since it uses as much as digits as its factorization.

1210121131022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605060565513.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1210121131022 its reverse (2201311210121), we get a palindrome (3411432341143).

The spelling of 1210121131022 in words is "one trillion, two hundred ten billion, one hundred twenty-one million, one hundred thirty-one thousand, twenty-two".