22821701 has 12 divisors (see below), whose sum is σ = 28110348. Its totient is φ = 18410112.

The previous prime is 22821683. The next prime is 22821703. The reversal of 22821701 is 10712822.

It can be written as a sum of positive squares in 2 ways, for example, as 17056900 + 5764801 = 4130^2 + 2401^2 .

It is not a de Polignac number, because 22821701 - 2¹⁸ = 22559557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22821703) 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 in 11 ways as a sum of consecutive naturals, for example, 12866 + ... + 14531.

It is an arithmetic number, because the mean of its divisors is an integer number (2342529).

Almost surely, 2^22821701 is an apocalyptic number.

It is an amenable number.

22821701 is a deficient number, since it is larger than the sum of its proper divisors (5288647).

22821701 is a wasteful number, since it uses less digits than its factorization.

22821701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27428 (or 27421 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 22821701 is about 4777.2064012349. The cubic root of 22821701 is about 283.6499232424.

The spelling of 22821701 in words is "twenty-two million, eight hundred twenty-one thousand, seven hundred one".