1212342032121 has 32 divisors (see below), whose sum is σ = 1804539517440. Its totient is φ = 717616368000.

The previous prime is 1212342032113. The next prime is 1212342032147. The reversal of 1212342032121 is 1212302432121.

It is not a de Polignac number, because 1212342032121 - 2³ = 1212342032113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212342032091 and 1212342032100.

It is not an unprimeable number, because it can be changed into a prime (1212342032171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41220021 + ... + 41249421.

It is an arithmetic number, because the mean of its divisors is an integer number (56391859920).

Almost surely, 2^{1212342032121} is an apocalyptic number.

1212342032121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212342032121 is a deficient number, since it is larger than the sum of its proper divisors (592197485319).

1212342032121 is a wasteful number, since it uses less digits than its factorization.

1212342032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58517.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1212342032121 its reverse (1212302432121), we get a palindrome (2424644464242).

The spelling of 1212342032121 in words is "one trillion, two hundred twelve billion, three hundred forty-two million, thirty-two thousand, one hundred twenty-one".