221411645750275 has 12 divisors (see below), whose sum is σ = 274550635261944. Its totient is φ = 177129191096000.

The previous prime is 221411645750227. The next prime is 221411645750327. The reversal of 221411645750275 is 572057546114122.

It is a de Polignac number, because none of the positive numbers 2^k-221411645750275 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51523455 + ... + 55655095.

It is an arithmetic number, because the mean of its divisors is an integer number (22879219605162).

Almost surely, 2^{221411645750275} is an apocalyptic number.

221411645750275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

221411645750275 is a deficient number, since it is larger than the sum of its proper divisors (53138989511669).

221411645750275 is a wasteful number, since it uses less digits than its factorization.

221411645750275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6275222 (or 6275217 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 52.

The spelling of 221411645750275 in words is "two hundred twenty-one trillion, four hundred eleven billion, six hundred forty-five million, seven hundred fifty thousand, two hundred seventy-five".