221020292077201 has 8 divisors (see below), whose sum is σ = 221364056675520. Its totient is φ = 220676543674512.

The previous prime is 221020292077141. The next prime is 221020292077213. The reversal of 221020292077201 is 102770292020122.

221020292077201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221020292077201 - 2⁷ = 221020292077073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221020292077301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23410836 + ... + 31465978.

It is an arithmetic number, because the mean of its divisors is an integer number (27670507084440).

Almost surely, 2^{221020292077201} is an apocalyptic number.

It is an amenable number.

221020292077201 is a deficient number, since it is larger than the sum of its proper divisors (343764598319).

221020292077201 is an equidigital number, since it uses as much as digits as its factorization.

221020292077201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8097815.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 221020292077201 in words is "two hundred twenty-one trillion, twenty billion, two hundred ninety-two million, seventy-seven thousand, two hundred one".