200122211111993 has 2 divisors, whose sum is σ = 200122211111994. Its totient is φ = 200122211111992.

The previous prime is 200122211111957. The next prime is 200122211112037. The reversal of 200122211111993 is 399111112221002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174967602811024 + 25154608300969 = 13227532^2 + 5015437^2 .

It is a cyclic number.

It is not a de Polignac number, because 200122211111993 - 2⁴² = 195724164600889 is a prime.

It is not a weakly prime, because it can be changed into another prime (200122211191993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100061105555996 + 100061105555997.

It is an arithmetic number, because the mean of its divisors is an integer number (100061105555997).

Almost surely, 2^{200122211111993} is an apocalyptic number.

It is an amenable number.

200122211111993 is a deficient number, since it is larger than the sum of its proper divisors (1).

200122211111993 is an equidigital number, since it uses as much as digits as its factorization.

200122211111993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 35.

Adding to 200122211111993 its reverse (399111112221002), we get a palindrome (599233323332995).

The spelling of 200122211111993 in words is "two hundred trillion, one hundred twenty-two billion, two hundred eleven million, one hundred eleven thousand, nine hundred ninety-three".