211222211200121 has 8 divisors (see below), whose sum is σ = 230424380338944. Its totient is φ = 192020067051120.

The previous prime is 211222211200109. The next prime is 211222211200279. The reversal of 211222211200121 is 121002112222112.

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

It is a de Polignac number, because none of the positive numbers 2^k-211222211200121 is a prime.

It is a super-2 number, since 2×211222211200121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211222211200093 and 211222211200102.

It is not an unprimeable number, because it can be changed into a prime (211222211500121) 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, 14389496 + ... + 25089878.

It is an arithmetic number, because the mean of its divisors is an integer number (28803047542368).

Almost surely, 2^{211222211200121} is an apocalyptic number.

It is an amenable number.

211222211200121 is a deficient number, since it is larger than the sum of its proper divisors (19202169138823).

211222211200121 is a wasteful number, since it uses less digits than its factorization.

211222211200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12494911.

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

Adding to 211222211200121 its reverse (121002112222112), we get a palindrome (332224323422233).

The spelling of 211222211200121 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred eleven million, two hundred thousand, one hundred twenty-one".