34472154221 has 4 divisors (see below), whose sum is σ = 34472541792. Its totient is φ = 34471766652.

The previous prime is 34472154203. The next prime is 34472154247. The reversal of 34472154221 is 12245127443.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12245127443 = 659 ⋅18581377.

It is a cyclic number.

It is not a de Polignac number, because 34472154221 - 2²² = 34467959917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34472154281) 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, 13640 + ... + 262926.

It is an arithmetic number, because the mean of its divisors is an integer number (8618135448).

Almost surely, 2^34472154221 is an apocalyptic number.

It is an amenable number.

34472154221 is a deficient number, since it is larger than the sum of its proper divisors (387571).

34472154221 is a wasteful number, since it uses less digits than its factorization.

34472154221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387570.

The product of its digits is 53760, while the sum is 35.

The spelling of 34472154221 in words is "thirty-four billion, four hundred seventy-two million, one hundred fifty-four thousand, two hundred twenty-one".