221107071521701 has 8 divisors (see below), whose sum is σ = 222972777446400. Its totient is φ = 219243314118528.

The previous prime is 221107071521663. The next prime is 221107071521737. The reversal of 221107071521701 is 107125170701122.

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

It is a cyclic number.

It is not a de Polignac number, because 221107071521701 - 2⁴³ = 212310978499493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221107071521201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486902476 + ... + 487356373.

It is an arithmetic number, because the mean of its divisors is an integer number (27871597180800).

Almost surely, 2^{221107071521701} is an apocalyptic number.

It is an amenable number.

221107071521701 is a deficient number, since it is larger than the sum of its proper divisors (1865705924699).

221107071521701 is a wasteful number, since it uses less digits than its factorization.

221107071521701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974260763.

The product of its (nonzero) digits is 13720, while the sum is 37.

The spelling of 221107071521701 in words is "two hundred twenty-one trillion, one hundred seven billion, seventy-one million, five hundred twenty-one thousand, seven hundred one".