3122200381 has 2 divisors, whose sum is σ = 3122200382. Its totient is φ = 3122200380.

The previous prime is 3122200357. The next prime is 3122200423. The reversal of 3122200381 is 1830022213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2780874756 + 341325625 = 52734^2 + 18475^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122200381 - 2¹⁹ = 3121676093 is a prime.

It is a super-2 number, since 2×3122200381² = 19496270438233090322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3122209381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561100190 + 1561100191.

It is an arithmetic number, because the mean of its divisors is an integer number (1561100191).

Almost surely, 2^3122200381 is an apocalyptic number.

It is an amenable number.

3122200381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3122200381 is an equidigital number, since it uses as much as digits as its factorization.

3122200381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 3122200381 is about 55876.6532730800. The cubic root of 3122200381 is about 1461.5721447637.

Adding to 3122200381 its reverse (1830022213), we get a palindrome (4952222594).

The spelling of 3122200381 in words is "three billion, one hundred twenty-two million, two hundred thousand, three hundred eighty-one".