22211087436 has 42 divisors (see below), whose sum is σ = 58277452772. Its totient is φ = 7403694840.

The previous prime is 22211087377. The next prime is 22211087461. The reversal of 22211087436 is 63478011222.

It is a happy number.

22211087436 is a `hidden beast` number, since 2 + 2 + 211 + 0 + 8 + 7 + 436 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22211087436.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3805570 + ... + 3811401.

Almost surely, 2^22211087436 is an apocalyptic number.

It is an amenable number.

22211087436 is an abundant number, since it is smaller than the sum of its proper divisors (36066365336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22211087436 is an equidigital number, since it uses as much as digits as its factorization.

22211087436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7616993 (or 7616976 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

Adding to 22211087436 its reverse (63478011222), we get a palindrome (85689098658).

The spelling of 22211087436 in words is "twenty-two billion, two hundred eleven million, eighty-seven thousand, four hundred thirty-six".