22100211021 has 16 divisors (see below), whose sum is σ = 35657483904. Its totient is φ = 11885827584.

The previous prime is 22100211011. The next prime is 22100211101. The reversal of 22100211021 is 12011200122.

It is not a de Polignac number, because 22100211021 - 2¹³ = 22100202829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22100210988 and 22100211006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100211011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30952320 + ... + 30953033.

It is an arithmetic number, because the mean of its divisors is an integer number (2228592744).

Almost surely, 2^22100211021 is an apocalyptic number.

22100211021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22100211021 is a deficient number, since it is larger than the sum of its proper divisors (13557272883).

22100211021 is a wasteful number, since it uses less digits than its factorization.

22100211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61905380.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22100211021 its reverse (12011200122), we get a palindrome (34111411143).

The spelling of 22100211021 in words is "twenty-two billion, one hundred million, two hundred eleven thousand, twenty-one".