221076830434 has 16 divisors (see below), whose sum is σ = 340822091808. Its totient is φ = 107492116032.

The previous prime is 221076830431. The next prime is 221076830441. The reversal of 221076830434 is 434038670122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221076830431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5642727 + ... + 5681770.

It is an arithmetic number, because the mean of its divisors is an integer number (21301380738).

Almost surely, 2^221076830434 is an apocalyptic number.

221076830434 is a deficient number, since it is larger than the sum of its proper divisors (119745261374).

221076830434 is a wasteful number, since it uses less digits than its factorization.

221076830434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11324769.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 221076830434 in words is "two hundred twenty-one billion, seventy-six million, eight hundred thirty thousand, four hundred thirty-four".