221162268077 has 8 divisors (see below), whose sum is σ = 234180326016. Its totient is φ = 208145156032.

The previous prime is 221162268073. The next prime is 221162268091. The reversal of 221162268077 is 770862261122.

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 221162268077 - 2² = 221162268073 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 (221162268073) 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, 276758 + ... + 720360.

It is an arithmetic number, because the mean of its divisors is an integer number (29272540752).

Almost surely, 2^221162268077 is an apocalyptic number.

It is an amenable number.

221162268077 is a deficient number, since it is larger than the sum of its proper divisors (13018057939).

221162268077 is a wasteful number, since it uses less digits than its factorization.

221162268077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472947.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 221162268077 in words is "two hundred twenty-one billion, one hundred sixty-two million, two hundred sixty-eight thousand, seventy-seven".