34111221421 has 4 divisors (see below), whose sum is σ = 34442398432. Its totient is φ = 33780044412.

The previous prime is 34111221371. The next prime is 34111221449. The reversal of 34111221421 is 12412211143.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34111221421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34111221392 and 34111221401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34111221121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165588351 + ... + 165588556.

It is an arithmetic number, because the mean of its divisors is an integer number (8610599608).

Almost surely, 2^34111221421 is an apocalyptic number.

It is an amenable number.

34111221421 is a deficient number, since it is larger than the sum of its proper divisors (331177011).

34111221421 is a wasteful number, since it uses less digits than its factorization.

34111221421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331177010.

The product of its digits is 384, while the sum is 22.

Adding to 34111221421 its reverse (12412211143), we get a palindrome (46523432564).

The spelling of 34111221421 in words is "thirty-four billion, one hundred eleven million, two hundred twenty-one thousand, four hundred twenty-one".