212213000020 has 96 divisors (see below), whose sum is σ = 513615126528. Its totient is φ = 72146145792.

The previous prime is 212213000017. The next prime is 212213000023. The reversal of 212213000020 is 20000312212.

It is an interprime number because it is at equal distance from previous prime (212213000017) and next prime (212213000023).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212213000023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9264822 + ... + 9287698.

It is an arithmetic number, because the mean of its divisors is an integer number (5350157568).

Almost surely, 2^212213000020 is an apocalyptic number.

212213000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212213000020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256807563264).

212213000020 is an abundant number, since it is smaller than the sum of its proper divisors (301402126508).

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

212213000020 is a wasteful number, since it uses less digits than its factorization.

212213000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23449 (or 23447 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 212213000020 its reverse (20000312212), we get a palindrome (232213312232).

The spelling of 212213000020 in words is "two hundred twelve billion, two hundred thirteen million, twenty", and thus it is an aban number.