1231210222102 has 16 divisors (see below), whose sum is σ = 2110664051712. Its totient is φ = 527657034600.

The previous prime is 1231210222093. The next prime is 1231210222103. The reversal of 1231210222102 is 2012220121321.

It is a super-2 number, since 2×1231210222102² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1231210222102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231210222103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1743643 + ... + 2345785.

It is an arithmetic number, because the mean of its divisors is an integer number (131916503232).

Almost surely, 2^{1231210222102} is an apocalyptic number.

1231210222102 is a deficient number, since it is larger than the sum of its proper divisors (879453829610).

1231210222102 is a wasteful number, since it uses less digits than its factorization.

1231210222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748203.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1231210222102 its reverse (2012220121321), we get a palindrome (3243430343423).

The spelling of 1231210222102 in words is "one trillion, two hundred thirty-one billion, two hundred ten million, two hundred twenty-two thousand, one hundred two".