222706821828465 has 24 divisors (see below), whose sum is σ = 415719400747560. Its totient is φ = 109640281515264.

The previous prime is 222706821828461. The next prime is 222706821828499. The reversal of 222706821828465 is 564828128607222.

222706821828465 is a `hidden beast` number, since 2 + 2 + 2 + 70 + 6 + 8 + 21 + 82 + 8 + 465 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2778752307681 + 219928069520784 = 1666959^2 + 14829972^2 .

It is not a de Polignac number, because 222706821828465 - 2² = 222706821828461 is a prime.

It is a super-3 number, since 3×222706821828465³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (222706821828461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190347710380 + ... + 190347711549.

It is an arithmetic number, because the mean of its divisors is an integer number (17321641697815).

Almost surely, 2^{222706821828465} is an apocalyptic number.

It is an amenable number.

222706821828465 is a deficient number, since it is larger than the sum of its proper divisors (193012578919095).

222706821828465 is a wasteful number, since it uses less digits than its factorization.

222706821828465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380695421953 (or 380695421950 counting only the distinct ones).

The product of its (nonzero) digits is 82575360, while the sum is 63.

The spelling of 222706821828465 in words is "two hundred twenty-two trillion, seven hundred six billion, eight hundred twenty-one million, eight hundred twenty-eight thousand, four hundred sixty-five".