2242120381 has 2 divisors, whose sum is σ = 2242120382. Its totient is φ = 2242120380.

The previous prime is 2242120373. The next prime is 2242120549. The reversal of 2242120381 is 1830212422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2205711225 + 36409156 = 46965^2 + 6034^2 .

It is a cyclic number.

It is not a de Polignac number, because 2242120381 - 2³ = 2242120373 is a prime.

It is a super-2 number, since 2×2242120381² = 10054207605791170322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2242120681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121060190 + 1121060191.

It is an arithmetic number, because the mean of its divisors is an integer number (1121060191).

Almost surely, 2^2242120381 is an apocalyptic number.

It is an amenable number.

2242120381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2242120381 is an equidigital number, since it uses as much as digits as its factorization.

2242120381 is an evil number, because the sum of its binary digits is even.

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

The square root of 2242120381 is about 47351.0335790044. The cubic root of 2242120381 is about 1308.8392454741.

The spelling of 2242120381 in words is "two billion, two hundred forty-two million, one hundred twenty thousand, three hundred eighty-one".