1212340432121 has 16 divisors (see below), whose sum is σ = 1492417046400. Its totient is φ = 959017857408.

The previous prime is 1212340432109. The next prime is 1212340432129.

It is a happy number.

1212340432121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1212340432121 - 2⁶ = 1212340432057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212340432129) 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, 917591 + ... + 1807388.

It is an arithmetic number, because the mean of its divisors is an integer number (93276065400).

Almost surely, 2^{1212340432121} is an apocalyptic number.

It is an amenable number.

1212340432121 is a deficient number, since it is larger than the sum of its proper divisors (280076614279).

1212340432121 is a wasteful number, since it uses less digits than its factorization.

1212340432121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729888.

The product of its (nonzero) digits is 2304, while the sum is 26.

It can be divided in two parts, 1212340 and 432121, that added together give a palindrome (1644461).

The spelling of 1212340432121 in words is "one trillion, two hundred twelve billion, three hundred forty million, four hundred thirty-two thousand, one hundred twenty-one".