220100202202381 has 2 divisors, whose sum is σ = 220100202202382. Its totient is φ = 220100202202380.

The previous prime is 220100202202357. The next prime is 220100202202399. The reversal of 220100202202381 is 183202202001022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199331082193156 + 20769120009225 = 14118466^2 + 4557315^2 .

It is a cyclic number.

It is not a de Polignac number, because 220100202202381 - 2⁷ = 220100202202253 is a prime.

It is a super-2 number, since 2×220100202202381² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220100202212381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110050101101190 + 110050101101191.

It is an arithmetic number, because the mean of its divisors is an integer number (110050101101191).

Almost surely, 2^{220100202202381} is an apocalyptic number.

It is an amenable number.

220100202202381 is a deficient number, since it is larger than the sum of its proper divisors (1).

220100202202381 is an equidigital number, since it uses as much as digits as its factorization.

220100202202381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 220100202202381 in words is "two hundred twenty trillion, one hundred billion, two hundred two million, two hundred two thousand, three hundred eighty-one".