22002196087 has 4 divisors (see below), whose sum is σ = 22002619576. Its totient is φ = 22001772600.

The previous prime is 22002196063. The next prime is 22002196103. The reversal of 22002196087 is 78069120022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78069120022 = 2 ⋅39034560011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22002196087 is a prime.

It is a super-2 number, since 2×22002196087² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002190087) 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, 120789 + ... + 242062.

It is an arithmetic number, because the mean of its divisors is an integer number (5500654894).

Almost surely, 2^22002196087 is an apocalyptic number.

22002196087 is a deficient number, since it is larger than the sum of its proper divisors (423489).

22002196087 is an equidigital number, since it uses as much as digits as its factorization.

22002196087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423488.

The product of its (nonzero) digits is 24192, while the sum is 37.

It can be divided in two parts, 22002 and 196087, that added together give a square (218089 = 467²).

The spelling of 22002196087 in words is "twenty-two billion, two million, one hundred ninety-six thousand, eighty-seven".