34361212021 has 4 divisors (see below), whose sum is σ = 34361780992. Its totient is φ = 34360643052.

The previous prime is 34361211961. The next prime is 34361212031. The reversal of 34361212021 is 12021216343.

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 not a de Polignac number, because 34361212021 - 2¹⁵ = 34361179253 is a prime.

It is a super-2 number, since 2×34361212021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34361212031) 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, 181461 + ... + 318826.

It is an arithmetic number, because the mean of its divisors is an integer number (8590445248).

Almost surely, 2^34361212021 is an apocalyptic number.

It is an amenable number.

34361212021 is a deficient number, since it is larger than the sum of its proper divisors (568971).

34361212021 is an equidigital number, since it uses as much as digits as its factorization.

34361212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568970.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 34361212021 its reverse (12021216343), we get a palindrome (46382428364).

The spelling of 34361212021 in words is "thirty-four billion, three hundred sixty-one million, two hundred twelve thousand, twenty-one".