20221101000 has 96 divisors (see below), whose sum is σ = 68347351800. Its totient is φ = 5392291200.

The previous prime is 20221100983. The next prime is 20221101001. The reversal of 20221101000 is 10112202.

It can be written as a sum of positive squares in 4 ways, for example, as 2928324996 + 17292776004 = 54114^2 + 131502^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20221101001) 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, 1114395 + ... + 1132394.

Almost surely, 2^20221101000 is an apocalyptic number.

20221101000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221101000 is an abundant number, since it is smaller than the sum of its proper divisors (48126250800).

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

20221101000 is a wasteful number, since it uses less digits than its factorization.

20221101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246816 (or 2246799 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20221101000 its reverse (10112202), we get a palindrome (20231213202).

The spelling of 20221101000 in words is "twenty billion, two hundred twenty-one million, one hundred one thousand".