10122111220211 has 8 divisors (see below), whose sum is σ = 10449267295104. Its totient is φ = 9794994917760.

The previous prime is 10122111220141. The next prime is 10122111220217. The reversal of 10122111220211 is 11202211122101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10122111220211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10122111220211.

It is not an unprimeable number, because it can be changed into a prime (10122111220217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9425456 + ... + 10444301.

It is an arithmetic number, because the mean of its divisors is an integer number (1306158411888).

Almost surely, 2^{10122111220211} is an apocalyptic number.

10122111220211 is a deficient number, since it is larger than the sum of its proper divisors (327156074893).

10122111220211 is a wasteful number, since it uses less digits than its factorization.

10122111220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19886221.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10122111220211 its reverse (11202211122101), we get a palindrome (21324322342312).

The spelling of 10122111220211 in words is "ten trillion, one hundred twenty-two billion, one hundred eleven million, two hundred twenty thousand, two hundred eleven".