121222001201213 has 16 divisors (see below), whose sum is σ = 138041858465280. Its totient is φ = 105448641830400.

The previous prime is 121222001201177. The next prime is 121222001201237. The reversal of 121222001201213 is 312102100222121.

It is not a de Polignac number, because 121222001201213 - 2¹⁴ = 121222001184829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222001201243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1997103020 + ... + 1997163717.

It is an arithmetic number, because the mean of its divisors is an integer number (8627616154080).

Almost surely, 2^{121222001201213} is an apocalyptic number.

It is an amenable number.

121222001201213 is a deficient number, since it is larger than the sum of its proper divisors (16819857264067).

121222001201213 is a wasteful number, since it uses less digits than its factorization.

121222001201213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3994266868.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121222001201213 its reverse (312102100222121), we get a palindrome (433324101423334).

The spelling of 121222001201213 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one million, two hundred one thousand, two hundred thirteen".