22277755500 has 768 divisors, whose sum is σ = 89679163392. Its totient is φ = 4147200000.

The previous prime is 22277755481. The next prime is 22277755547. The reversal of 22277755500 is 555777222.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 55555300 + ... + 55555700.

It is an arithmetic number, because the mean of its divisors is an integer number (116769744).

Almost surely, 2^22277755500 is an apocalyptic number.

22277755500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22277755500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44839581696).

22277755500 is an abundant number, since it is smaller than the sum of its proper divisors (67401407892).

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

22277755500 is a wasteful number, since it uses less digits than its factorization.

22277755500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 343000, while the sum is 42.

It can be divided in two parts, 22277 and 755500, that added together give a palindrome (777777).

The spelling of 22277755500 in words is "twenty-two billion, two hundred seventy-seven million, seven hundred fifty-five thousand, five hundred".