212123133101220 has 192 divisors, whose sum is σ = 682059900211200. Its totient is φ = 48715984880640.

The previous prime is 212123133101203. The next prime is 212123133101221. The reversal of 212123133101220 is 22101331321212.

212123133101220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212123133101221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 522050296 + ... + 522456464.

It is an arithmetic number, because the mean of its divisors is an integer number (3552395313600).

Almost surely, 2^{212123133101220} is an apocalyptic number.

212123133101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212123133101220 is an abundant number, since it is smaller than the sum of its proper divisors (469936767109980).

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

212123133101220 is a wasteful number, since it uses less digits than its factorization.

212123133101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447858 (or 447856 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 212123133101220 its reverse (22101331321212), we get a palindrome (234224464422432).

The spelling of 212123133101220 in words is "two hundred twelve trillion, one hundred twenty-three billion, one hundred thirty-three million, one hundred one thousand, two hundred twenty".