229021721396 has 48 divisors (see below), whose sum is σ = 437082696960. Its totient is φ = 104369731200.

The previous prime is 229021721329. The next prime is 229021721429. The reversal of 229021721396 is 693127120922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1868075 + ... + 1986893.

It is an arithmetic number, because the mean of its divisors is an integer number (9105889520).

Almost surely, 2^229021721396 is an apocalyptic number.

229021721396 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

229021721396 is a deficient number, since it is larger than the sum of its proper divisors (208060975564).

229021721396 is a wasteful number, since it uses less digits than its factorization.

229021721396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119304 (or 119302 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 229021721396 in words is "two hundred twenty-nine billion, twenty-one million, seven hundred twenty-one thousand, three hundred ninety-six".