1212213112023 has 16 divisors (see below), whose sum is σ = 1639095526656. Its totient is φ = 796737036480.

The previous prime is 1212213112003. The next prime is 1212213112049. The reversal of 1212213112023 is 3202113122121.

It is not a de Polignac number, because 1212213112023 - 2²⁵ = 1212179557591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212213112003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10816411 + ... + 10927907.

It is an arithmetic number, because the mean of its divisors is an integer number (102443470416).

Almost surely, 2^{1212213112023} is an apocalyptic number.

1212213112023 is a deficient number, since it is larger than the sum of its proper divisors (426882414633).

1212213112023 is a wasteful number, since it uses less digits than its factorization.

1212213112023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162614.

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

Adding to 1212213112023 its reverse (3202113122121), we get a palindrome (4414326234144).

The spelling of 1212213112023 in words is "one trillion, two hundred twelve billion, two hundred thirteen million, one hundred twelve thousand, twenty-three".