212011121210020 has 48 divisors (see below), whose sum is σ = 489405824905536. Its totient is φ = 76506442064000.

The previous prime is 212011121209903. The next prime is 212011121210041. The reversal of 212011121210020 is 20012121110212.

It is a junction number, because it is equal to n+sod(n) for n = 212011121209976 and 212011121210003.

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, 3678165511 + ... + 3678223150.

It is an arithmetic number, because the mean of its divisors is an integer number (10195954685532).

Almost surely, 2^{212011121210020} is an apocalyptic number.

212011121210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212011121210020 is an abundant number, since it is smaller than the sum of its proper divisors (277394703695516).

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

212011121210020 is a wasteful number, since it uses less digits than its factorization.

212011121210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7356388812 (or 7356388810 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212011121210020 its reverse (20012121110212), we get a palindrome (232023242320232).

The spelling of 212011121210020 in words is "two hundred twelve trillion, eleven billion, one hundred twenty-one million, two hundred ten thousand, twenty".