1212242422121 has 32 divisors (see below), whose sum is σ = 1255398576768. Its totient is φ = 1170114232320.

The previous prime is 1212242422109. The next prime is 1212242422133.

1212242422121 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (1212242422109) and next prime (1212242422133).

It is a cyclic number.

It is not a de Polignac number, because 1212242422121 - 2¹⁰ = 1212242421097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212242422921) 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, 478956626 + ... + 478959156.

It is an arithmetic number, because the mean of its divisors is an integer number (39231205524).

Almost surely, 2^{1212242422121} is an apocalyptic number.

It is an amenable number.

1212242422121 is a deficient number, since it is larger than the sum of its proper divisors (43156154647).

1212242422121 is a wasteful number, since it uses less digits than its factorization.

1212242422121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401.

The product of its digits is 2048, while the sum is 26.

The spelling of 1212242422121 in words is "one trillion, two hundred twelve billion, two hundred forty-two million, four hundred twenty-two thousand, one hundred twenty-one".