22211320800 has 144 divisors (see below), whose sum is σ = 75441421440. Its totient is φ = 5665482240.

The previous prime is 22211320799. The next prime is 22211320801. The reversal of 22211320800 is 802311222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22211320799) and next prime (22211320801).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211320801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145990 + ... + 256389.

It is an arithmetic number, because the mean of its divisors is an integer number (523898760).

Almost surely, 2^22211320800 is an apocalyptic number.

22211320800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211320800 is an abundant number, since it is smaller than the sum of its proper divisors (53230100640).

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

22211320800 is a wasteful number, since it uses less digits than its factorization.

22211320800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402425 (or 402412 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The spelling of 22211320800 in words is "twenty-two billion, two hundred eleven million, three hundred twenty thousand, eight hundred".