2225121 has 16 divisors (see below), whose sum is σ = 3108864. Its totient is φ = 1414224.

The previous prime is 2225107. The next prime is 2225123. The reversal of 2225121 is 1215222.

2225121 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 2225121 - 2⁶ = 2225057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2225121.

It is not an unprimeable number, because it can be changed into a prime (2225123) 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, 5880 + ... + 6246.

It is an arithmetic number, because the mean of its divisors is an integer number (194304).

2^2225121 is an apocalyptic number.

It is an amenable number.

2225121 is a deficient number, since it is larger than the sum of its proper divisors (883743).

2225121 is a wasteful number, since it uses less digits than its factorization.

2225121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460.

The product of its digits is 80, while the sum is 15.

The square root of 2225121 is about 1491.6839477584. The cubic root of 2225121 is about 130.5523050412.

It can be divided in two parts, 2225 and 121, that added together give a triangular number (2346 = T₆₈).

The spelling of 2225121 in words is "two million, two hundred twenty-five thousand, one hundred twenty-one".