22101699497 has 4 divisors (see below), whose sum is σ = 22223808516. Its totient is φ = 21979590480.

The previous prime is 22101699463. The next prime is 22101699509. The reversal of 22101699497 is 79499610122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3555617641 + 18546081856 = 59629^2 + 136184^2 .

It is a cyclic number.

It is not a de Polignac number, because 22101699497 - 2¹⁴ = 22101683113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22101699427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61054238 + ... + 61054599.

It is an arithmetic number, because the mean of its divisors is an integer number (5555952129).

Almost surely, 2^22101699497 is an apocalyptic number.

It is an amenable number.

22101699497 is a deficient number, since it is larger than the sum of its proper divisors (122109019).

22101699497 is a wasteful number, since it uses less digits than its factorization.

22101699497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122109018.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 22101699497 in words is "twenty-two billion, one hundred one million, six hundred ninety-nine thousand, four hundred ninety-seven".