211121201212022 has 4 divisors (see below), whose sum is σ = 316681801818036. Its totient is φ = 105560600606010.

The previous prime is 211121201211979. The next prime is 211121201212037. The reversal of 211121201212022 is 220212102121112.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 211121201211985 and 211121201212003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52780300303004 + ... + 52780300303007.

It is an arithmetic number, because the mean of its divisors is an integer number (79170450454509).

Almost surely, 2^{211121201212022} is an apocalyptic number.

211121201212022 is a deficient number, since it is larger than the sum of its proper divisors (105560600606014).

211121201212022 is a wasteful number, since it uses less digits than its factorization.

211121201212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105560600606013.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211121201212022 its reverse (220212102121112), we get a palindrome (431333303333134).

The spelling of 211121201212022 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred one million, two hundred twelve thousand, twenty-two".