3421212121243 has 16 divisors (see below), whose sum is σ = 4045848972480. Its totient is φ = 2830601644416.

The previous prime is 3421212121211. The next prime is 3421212121291.

3421212121243 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3421212121243 - 2⁵ = 3421212121211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3421212121043) 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, 1448496 + ... + 2990077.

It is an arithmetic number, because the mean of its divisors is an integer number (252865560780).

Almost surely, 2^{3421212121243} is an apocalyptic number.

3421212121243 is a deficient number, since it is larger than the sum of its proper divisors (624636851237).

3421212121243 is a wasteful number, since it uses less digits than its factorization.

3421212121243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442406.

The product of its digits is 4608, while the sum is 28.

The spelling of 3421212121243 in words is "three trillion, four hundred twenty-one billion, two hundred twelve million, one hundred twenty-one thousand, two hundred forty-three".