212223030310020 has 48 divisors (see below), whose sum is σ = 594225670570560. Its totient is φ = 56592695158656.

The previous prime is 212223030309949. The next prime is 212223030310087. The reversal of 212223030310020 is 20013030322212.

It is a happy number.

It is a super-2 number, since 2×212223030310020² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29317966 + ... + 35832794.

It is an arithmetic number, because the mean of its divisors is an integer number (12379701470220).

Almost surely, 2^{212223030310020} is an apocalyptic number.

212223030310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212223030310020 is an abundant number, since it is smaller than the sum of its proper divisors (382002640260540).

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

212223030310020 is a wasteful number, since it uses less digits than its factorization.

212223030310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7057764 (or 7057762 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212223030310020 its reverse (20013030322212), we get a palindrome (232236060632232).

The spelling of 212223030310020 in words is "two hundred twelve trillion, two hundred twenty-three billion, thirty million, three hundred ten thousand, twenty".