22101953 has 2 divisors, whose sum is σ = 22101954. Its totient is φ = 22101952.

The previous prime is 22101941. The next prime is 22101967. The reversal of 22101953 is 35910122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21977344 + 124609 = 4688^2 + 353^2 .

It is a cyclic number.

It is not a de Polignac number, because 22101953 - 2⁶ = 22101889 is a prime.

It is not a weakly prime, because it can be changed into another prime (22101923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050976 + 11050977.

It is an arithmetic number, because the mean of its divisors is an integer number (11050977).

Almost surely, 2^22101953 is an apocalyptic number.

It is an amenable number.

22101953 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101953 is an equidigital number, since it uses as much as digits as its factorization.

22101953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 22101953 is about 4701.2714237746. The cubic root of 22101953 is about 280.6361090537.

The spelling of 22101953 in words is "twenty-two million, one hundred one thousand, nine hundred fifty-three".