212121121101122 has 8 divisors (see below), whose sum is σ = 334928085949200. Its totient is φ = 100478425784724.

The previous prime is 212121121101121. The next prime is 212121121101157. The reversal of 212121121101122 is 221101121121212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 212121121101094 and 212121121101103.

It is not an unprimeable number, because it can be changed into a prime (212121121101121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2791067382872 + ... + 2791067382947.

It is an arithmetic number, because the mean of its divisors is an integer number (41866010743650).

Almost surely, 2^{212121121101122} is an apocalyptic number.

212121121101122 is a deficient number, since it is larger than the sum of its proper divisors (122806964848078).

212121121101122 is a wasteful number, since it uses less digits than its factorization.

212121121101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5582134765840.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 212121121101122 its reverse (221101121121212), we get a palindrome (433222242222334).

The spelling of 212121121101122 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred one thousand, one hundred twenty-two".