22220021101000 has 64 divisors (see below), whose sum is σ = 52847224101360. Its totient is φ = 8742303360000.

The previous prime is 22220021100989. The next prime is 22220021101001. The reversal of 22220021101000 is 10112002222.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 172319632996 + 22047701468004 = 415114^2 + 4695498^2 .

It is not an unprimeable number, because it can be changed into a prime (22220021101001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182070321 + ... + 182192320.

Almost surely, 2^{22220021101000} is an apocalyptic number.

22220021101000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220021101000 is an abundant number, since it is smaller than the sum of its proper divisors (30627203000360).

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

22220021101000 is a wasteful number, since it uses less digits than its factorization.

22220021101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364262723 (or 364262709 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22220021101000 its reverse (10112002222), we get a palindrome (22230133103222).

The spelling of 22220021101000 in words is "twenty-two trillion, two hundred twenty billion, twenty-one million, one hundred one thousand".