222064206145621 has 16 divisors (see below), whose sum is σ = 263946116707840. Its totient is φ = 182852145290880.

The previous prime is 222064206145559. The next prime is 222064206145657. The reversal of 222064206145621 is 126541602460222.

It is a cyclic number.

It is not a de Polignac number, because 222064206145621 - 2²¹ = 222064204048469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222064206145321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5426503320 + ... + 5426544241.

It is an arithmetic number, because the mean of its divisors is an integer number (16496632294240).

Almost surely, 2^{222064206145621} is an apocalyptic number.

It is an amenable number.

222064206145621 is a deficient number, since it is larger than the sum of its proper divisors (41881910562219).

222064206145621 is a wasteful number, since it uses less digits than its factorization.

222064206145621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10853047684.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 222064206145621 in words is "two hundred twenty-two trillion, sixty-four billion, two hundred six million, one hundred forty-five thousand, six hundred twenty-one".