22000212020 has 24 divisors (see below), whose sum is σ = 47072154024. Its totient is φ = 8634045056.

The previous prime is 22000211983. The next prime is 22000212037. The reversal of 22000212020 is 2021200022.

It can be written as a sum of positive squares in 4 ways, for example, as 503374096 + 21496837924 = 22436^2 + 146618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22000211992 and 22000212010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10376399 + ... + 10378518.

It is an arithmetic number, because the mean of its divisors is an integer number (1961339751).

Almost surely, 2^22000212020 is an apocalyptic number.

22000212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22000212020 is an abundant number, since it is smaller than the sum of its proper divisors (25071942004).

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

22000212020 is a wasteful number, since it uses less digits than its factorization.

22000212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20754979 (or 20754977 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 22000212020 its reverse (2021200022), we get a palindrome (24021412042).

The spelling of 22000212020 in words is "twenty-two billion, two hundred twelve thousand, twenty".