22021127149 has 8 divisors (see below), whose sum is σ = 25170955328. Its totient is φ = 18872287200.

The previous prime is 22021127143. The next prime is 22021127173. The reversal of 22021127149 is 94172112022.

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

It is a cyclic number.

It is not a de Polignac number, because 22021127149 - 2¹³ = 22021118957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22021127149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021127143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198672 + ... + 288985.

It is an arithmetic number, because the mean of its divisors is an integer number (3146369416).

Almost surely, 2^22021127149 is an apocalyptic number.

It is an amenable number.

22021127149 is a deficient number, since it is larger than the sum of its proper divisors (3149828179).

22021127149 is an equidigital number, since it uses as much as digits as its factorization.

22021127149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494115.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 22021127149 in words is "twenty-two billion, twenty-one million, one hundred twenty-seven thousand, one hundred forty-nine".