12210312121302 has 16 divisors (see below), whose sum is σ = 24423098337792. Its totient is φ = 4069691691240.

The previous prime is 12210312121291. The next prime is 12210312121409. The reversal of 12210312121302 is 20312121301221.

It is a super-2 number, since 2×12210312121302² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103023138 + ... + 103141589.

It is an arithmetic number, because the mean of its divisors is an integer number (1526443646112).

Almost surely, 2^{12210312121302} is an apocalyptic number.

12210312121302 is an abundant number, since it is smaller than the sum of its proper divisors (12212786216490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12210312121302 is a wasteful number, since it uses less digits than its factorization.

12210312121302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206174603.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12210312121302 its reverse (20312121301221), we get a palindrome (32522433422523).

The spelling of 12210312121302 in words is "twelve trillion, two hundred ten billion, three hundred twelve million, one hundred twenty-one thousand, three hundred two".