220201213332691 has 2 divisors, whose sum is σ = 220201213332692. Its totient is φ = 220201213332690.

The previous prime is 220201213332673. The next prime is 220201213332701. The reversal of 220201213332691 is 196233312102022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220201213332691 - 2⁷ = 220201213332563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220201213332691.

It is not a weakly prime, because it can be changed into another prime (220201213302691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110100606666345 + 110100606666346.

It is an arithmetic number, because the mean of its divisors is an integer number (110100606666346).

Almost surely, 2^{220201213332691} is an apocalyptic number.

220201213332691 is a deficient number, since it is larger than the sum of its proper divisors (1).

220201213332691 is an equidigital number, since it uses as much as digits as its factorization.

220201213332691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 220201213332691 in words is "two hundred twenty trillion, two hundred one billion, two hundred thirteen million, three hundred thirty-two thousand, six hundred ninety-one".