22101925 has 6 divisors (see below), whose sum is σ = 27406418. Its totient is φ = 17681520.

The previous prime is 22101923. The next prime is 22101941. The reversal of 22101925 is 52910122.

It can be written as a sum of positive squares in 3 ways, for example, as 133956 + 21967969 = 366^2 + 4687^2 .

It is not a de Polignac number, because 22101925 - 2¹ = 22101923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101896 and 22101905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 442014 + ... + 442063.

Almost surely, 2^22101925 is an apocalyptic number.

22101925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22101925 is a deficient number, since it is larger than the sum of its proper divisors (5304493).

22101925 is an equidigital number, since it uses as much as digits as its factorization.

22101925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884087 (or 884082 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 22101925 is about 4701.2684458559. The cubic root of 22101925 is about 280.6359905451.

The spelling of 22101925 in words is "twenty-two million, one hundred one thousand, nine hundred twenty-five".