20212222000 has 40 divisors (see below), whose sum is σ = 48873157632. Its totient is φ = 8084888000.

The previous prime is 20212221989. The next prime is 20212222007. The reversal of 20212222000 is 22221202.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (20212222007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5051056 + ... + 5055055.

Almost surely, 2^20212222000 is an apocalyptic number.

20212222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212222000 is an abundant number, since it is smaller than the sum of its proper divisors (28660935632).

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

20212222000 is a wasteful number, since it uses less digits than its factorization.

20212222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10106134 (or 10106118 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20212222000 its reverse (22221202), we get a palindrome (20234443202).

The spelling of 20212222000 in words is "twenty billion, two hundred twelve million, two hundred twenty-two thousand".