222146721697208 has 64 divisors (see below), whose sum is σ = 525877493529600. Its totient is φ = 85455092661120.

The previous prime is 222146721697193. The next prime is 222146721697231. The reversal of 222146721697208 is 802796127641222.

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, 2282405735 + ... + 2282503062.

It is an arithmetic number, because the mean of its divisors is an integer number (8216835836400).

Almost surely, 2^{222146721697208} is an apocalyptic number.

222146721697208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

222146721697208 is an abundant number, since it is smaller than the sum of its proper divisors (303730771832392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222146721697208 is a wasteful number, since it uses less digits than its factorization.

222146721697208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564908900 (or 4564908896 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 59.

The spelling of 222146721697208 in words is "two hundred twenty-two trillion, one hundred forty-six billion, seven hundred twenty-one million, six hundred ninety-seven thousand, two hundred eight".