2251011 has 12 divisors (see below), whose sum is σ = 3491592. Its totient is φ = 1286208.

The previous prime is 2251001. The next prime is 2251031. The reversal of 2251011 is 1101522.

It is not a de Polignac number, because 2251011 - 2⁵ = 2250979 is a prime.

2251011 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2251001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7510 + ... + 7803.

It is an arithmetic number, because the mean of its divisors is an integer number (290966).

2^2251011 is an apocalyptic number.

2251011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2251011 is a deficient number, since it is larger than the sum of its proper divisors (1240581).

2251011 is a wasteful number, since it uses less digits than its factorization.

2251011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15330 (or 15323 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 2251011 is about 1500.3369621522. The cubic root of 2251011 is about 131.0566932127.

Adding to 2251011 its reverse (1101522), we get a palindrome (3352533).

It can be divided in two parts, 225 and 1011, that multiplied together give a triangular number (227475 = T₆₇₄).

The spelling of 2251011 in words is "two million, two hundred fifty-one thousand, eleven".