211020120101222 has 4 divisors (see below), whose sum is σ = 316530180151836. Its totient is φ = 105510060050610.

The previous prime is 211020120101213. The next prime is 211020120101257. The reversal of 211020120101222 is 222101021020112.

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

It is a self number, because there is not a number n which added to its sum of digits gives 211020120101222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52755030025304 + ... + 52755030025307.

It is an arithmetic number, because the mean of its divisors is an integer number (79132545037959).

Almost surely, 2^{211020120101222} is an apocalyptic number.

211020120101222 is a deficient number, since it is larger than the sum of its proper divisors (105510060050614).

211020120101222 is a wasteful number, since it uses less digits than its factorization.

211020120101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105510060050613.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211020120101222 its reverse (222101021020112), we get a palindrome (433121141121334).

The spelling of 211020120101222 in words is "two hundred eleven trillion, twenty billion, one hundred twenty million, one hundred one thousand, two hundred twenty-two".