101210222120122 has 4 divisors (see below), whose sum is σ = 151815333180186. Its totient is φ = 50605111060060.

The previous prime is 101210222120107. The next prime is 101210222120123. The reversal of 101210222120122 is 221021222012101.

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., 96029631879841 + 5180590240281 = 9799471^2 + 2276091^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101210222120122.

It is not an unprimeable number, because it can be changed into a prime (101210222120123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25302555530029 + ... + 25302555530032.

Almost surely, 2^{101210222120122} is an apocalyptic number.

101210222120122 is a deficient number, since it is larger than the sum of its proper divisors (50605111060064).

101210222120122 is an equidigital number, since it uses as much as digits as its factorization.

101210222120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50605111060063.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 101210222120122 its reverse (221021222012101), we get a palindrome (322231444132223).

The spelling of 101210222120122 in words is "one hundred one trillion, two hundred ten billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twenty-two".