212232121210020 has 48 divisors (see below), whose sum is σ = 604321972269120. Its totient is φ = 55635991095936.

The previous prime is 212232121209991. The next prime is 212232121210049. The reversal of 212232121210020 is 20012121232212.

It is an interprime number because it is at equal distance from previous prime (212232121209991) and next prime (212232121210049).

It is a super-4 number, since 4×212232121210020⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

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, 29976284767 + ... + 29976291846.

It is an arithmetic number, because the mean of its divisors is an integer number (12590041088940).

Almost surely, 2^{212232121210020} is an apocalyptic number.

212232121210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212232121210020 is an abundant number, since it is smaller than the sum of its proper divisors (392089851059100).

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

212232121210020 is a wasteful number, since it uses less digits than its factorization.

212232121210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59952576684 (or 59952576682 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 212232121210020 its reverse (20012121232212), we get a palindrome (232244242442232).

The spelling of 212232121210020 in words is "two hundred twelve trillion, two hundred thirty-two billion, one hundred twenty-one million, two hundred ten thousand, twenty".