221770352042411 has 4 divisors (see below), whose sum is σ = 221770383172800. Its totient is φ = 221770320912024.

The previous prime is 221770352042401. The next prime is 221770352042423. The reversal of 221770352042411 is 114240253077122.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 221770352042411 - 2⁶ = 221770352042347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221770352042401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 990245 + ... + 21083673.

It is an arithmetic number, because the mean of its divisors is an integer number (55442595793200).

Almost surely, 2^{221770352042411} is an apocalyptic number.

221770352042411 is a deficient number, since it is larger than the sum of its proper divisors (31130389).

221770352042411 is a wasteful number, since it uses less digits than its factorization.

221770352042411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31130388.

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 221770352042411 in words is "two hundred twenty-one trillion, seven hundred seventy billion, three hundred fifty-two million, forty-two thousand, four hundred eleven".