1210120222101 has 64 divisors (see below), whose sum is σ = 1882685030400. Its totient is φ = 677086617600.

The previous prime is 1210120222081. The next prime is 1210120222111. The reversal of 1210120222101 is 1012220210121.

It is a de Polignac number, because none of the positive numbers 2^k-1210120222101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210120222111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 380419731 + ... + 380422911.

It is an arithmetic number, because the mean of its divisors is an integer number (29416953600).

Almost surely, 2^{1210120222101} is an apocalyptic number.

It is an amenable number.

1210120222101 is a deficient number, since it is larger than the sum of its proper divisors (672564808299).

1210120222101 is a wasteful number, since it uses less digits than its factorization.

1210120222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4370.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1210120222101 its reverse (1012220210121), we get a palindrome (2222340432222).

The spelling of 1210120222101 in words is "one trillion, two hundred ten billion, one hundred twenty million, two hundred twenty-two thousand, one hundred one".