212102021110120 has 64 divisors (see below), whose sum is σ = 479088718142400. Its totient is φ = 84510889643520.

The previous prime is 212102021110051. The next prime is 212102021110121. The reversal of 212102021110120 is 21011120201212.

It is a junction number, because it is equal to n+sod(n) for n = 212102021110094 and 212102021110103.

It is not an unprimeable number, because it can be changed into a prime (212102021110121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1923667 + ... + 20685853.

It is an arithmetic number, because the mean of its divisors is an integer number (7485761220975).

Almost surely, 2^{212102021110120} is an apocalyptic number.

212102021110120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212102021110120 is an abundant number, since it is smaller than the sum of its proper divisors (266986697032280).

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

212102021110120 is a wasteful number, since it uses less digits than its factorization.

212102021110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18763298 (or 18763294 counting only the distinct ones).

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

Adding to 212102021110120 its reverse (21011120201212), we get a palindrome (233113141311332).

The spelling of 212102021110120 in words is "two hundred twelve trillion, one hundred two billion, twenty-one million, one hundred ten thousand, one hundred twenty".