22401111621 has 8 divisors (see below), whose sum is σ = 34135027264. Its totient is φ = 12800635200.

The previous prime is 22401111589. The next prime is 22401111641. The reversal of 22401111621 is 12611110422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22401111621 - 2⁵ = 22401111589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1066719601 = 22401111621 / (2 + 2 + 4 + 0 + 1 + 1 + 1 + 1 + 6 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22401111641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533359780 + ... + 533359821.

It is an arithmetic number, because the mean of its divisors is an integer number (4266878408).

Almost surely, 2^22401111621 is an apocalyptic number.

22401111621 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22401111621 is a deficient number, since it is larger than the sum of its proper divisors (11733915643).

22401111621 is a wasteful number, since it uses less digits than its factorization.

22401111621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066719611.

The product of its (nonzero) digits is 192, while the sum is 21.

The spelling of 22401111621 in words is "twenty-two billion, four hundred one million, one hundred eleven thousand, six hundred twenty-one".