121222001201211 has 32 divisors (see below), whose sum is σ = 187438136209920. Its totient is φ = 77283741360672.

The previous prime is 121222001201177. The next prime is 121222001201237. The reversal of 121222001201211 is 112102100222121.

121222001201211 is a `hidden beast` number, since 1 + 212 + 220 + 0 + 1 + 20 + 1 + 211 = 666.

It is not a de Polignac number, because 121222001201211 - 2⁷ = 121222001201083 is a prime.

It is a super-2 number, since 2×121222001201211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121222001201291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18987696 + ... + 24555581.

It is an arithmetic number, because the mean of its divisors is an integer number (5857441756560).

Almost surely, 2^{121222001201211} is an apocalyptic number.

121222001201211 is a deficient number, since it is larger than the sum of its proper divisors (66216135008709).

121222001201211 is a wasteful number, since it uses less digits than its factorization.

121222001201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43547792 (or 43547786 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121222001201211 its reverse (112102100222121), we get a palindrome (233324101423332).

The spelling of 121222001201211 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one million, two hundred one thousand, two hundred eleven".