222001400987 has 8 divisors (see below), whose sum is σ = 226215826704. Its totient is φ = 217787927968.

The previous prime is 222001400947. The next prime is 222001401007. The reversal of 222001400987 is 789004100222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222001400987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222001400917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241373 + ... + 708705.

It is an arithmetic number, because the mean of its divisors is an integer number (28276978338).

Almost surely, 2^222001400987 is an apocalyptic number.

222001400987 is a deficient number, since it is larger than the sum of its proper divisors (4214425717).

222001400987 is an equidigital number, since it uses as much as digits as its factorization.

222001400987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476349.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 222001400987 in words is "two hundred twenty-two billion, one million, four hundred thousand, nine hundred eighty-seven".