212021000120122 has 8 divisors (see below), whose sum is σ = 318473824939200. Its totient is φ = 105863058473724.

The previous prime is 212021000120117. The next prime is 212021000120123. The reversal of 212021000120122 is 221021000120212.

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 = 212021000120096 and 212021000120105.

It is not an unprimeable number, because it can be changed into a prime (212021000120123) 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, 73720791372 + ... + 73720794247.

It is an arithmetic number, because the mean of its divisors is an integer number (39809228117400).

Almost surely, 2^{212021000120122} is an apocalyptic number.

212021000120122 is a deficient number, since it is larger than the sum of its proper divisors (106452824819078).

212021000120122 is a wasteful number, since it uses less digits than its factorization.

212021000120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147441586340.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212021000120122 its reverse (221021000120212), we get a palindrome (433042000240334).

The spelling of 212021000120122 in words is "two hundred twelve trillion, twenty-one billion, one hundred twenty thousand, one hundred twenty-two".