240022121 has 2 divisors, whose sum is σ = 240022122. Its totient is φ = 240022120.

The previous prime is 240022063. The next prime is 240022127. The reversal of 240022121 is 121220042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177848896 + 62173225 = 13336^2 + 7885^2 .

It is a cyclic number.

It is not a de Polignac number, because 240022121 - 2¹⁴ = 240005737 is a prime.

It is a super-2 number, since 2×240022121² = 115221237138677282, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 240022096 and 240022105.

It is not a weakly prime, because it can be changed into another prime (240022127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120011060 + 120011061.

It is an arithmetic number, because the mean of its divisors is an integer number (120011061).

Almost surely, 2^240022121 is an apocalyptic number.

It is an amenable number.

240022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

240022121 is an equidigital number, since it uses as much as digits as its factorization.

240022121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 240022121 is about 15492.6473205840. The cubic root of 240022121 is about 621.4655936848.

Adding to 240022121 its reverse (121220042), we get a palindrome (361242163).

The spelling of 240022121 in words is "two hundred forty million, twenty-two thousand, one hundred twenty-one".