26221701 has 32 divisors (see below), whose sum is σ = 41361408. Its totient is φ = 14595840.

The previous prime is 26221693. The next prime is 26221709. The reversal of 26221701 is 10712262.

It is an interprime number because it is at equal distance from previous prime (26221693) and next prime (26221709).

It is not a de Polignac number, because 26221701 - 2³ = 26221693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26221709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23580 + ... + 24666.

It is an arithmetic number, because the mean of its divisors is an integer number (1292544).

Almost surely, 2^26221701 is an apocalyptic number.

It is an amenable number.

26221701 is a deficient number, since it is larger than the sum of its proper divisors (15139707).

26221701 is a wasteful number, since it uses less digits than its factorization.

26221701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 26221701 is about 5120.7129386444. The cubic root of 26221701 is about 297.0892611117.

Adding to 26221701 its reverse (10712262), we get a palindrome (36933963).

The spelling of 26221701 in words is "twenty-six million, two hundred twenty-one thousand, seven hundred one".