211121310122 has 8 divisors (see below), whose sum is σ = 316749315456. Its totient is φ = 105538204972.

The previous prime is 211121310121. The next prime is 211121310137. The reversal of 211121310122 is 221013121112.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 211121310122.

It is not an unprimeable number, because it can be changed into a prime (211121310121) 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, 11213288 + ... + 11232099.

It is an arithmetic number, because the mean of its divisors is an integer number (39593664432).

Almost surely, 2^211121310122 is an apocalyptic number.

211121310122 is a deficient number, since it is larger than the sum of its proper divisors (105628005334).

211121310122 is a wasteful number, since it uses less digits than its factorization.

211121310122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22450092.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 211121310122 its reverse (221013121112), we get a palindrome (432134431234).

The spelling of 211121310122 in words is "two hundred eleven billion, one hundred twenty-one million, three hundred ten thousand, one hundred twenty-two".