2201381 has 16 divisors (see below), whose sum is σ = 2870784. Its totient is φ = 1638144.

The previous prime is 2201371. The next prime is 2201387. The reversal of 2201381 is 1831022.

It is a cyclic number.

It is not a de Polignac number, because 2201381 - 2⁶ = 2201317 is a prime.

It is a super-2 number, since 2×2201381² = 9692156614322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836 + ... + 2258.

It is an arithmetic number, because the mean of its divisors is an integer number (179424).

2^2201381 is an apocalyptic number.

It is an amenable number.

2201381 is a deficient number, since it is larger than the sum of its proper divisors (669403).

2201381 is a wasteful number, since it uses less digits than its factorization.

2201381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2201381 is about 1483.7051593898. The cubic root of 2201381 is about 130.0863528836.

The spelling of 2201381 in words is "two million, two hundred one thousand, three hundred eighty-one".