1222111202121 has 12 divisors (see below), whose sum is σ = 1806324568048. Its totient is φ = 795793340664.

The previous prime is 1222111202119. The next prime is 1222111202153. The reversal of 1222111202121 is 1212021112221.

1222111202121 is a `hidden beast` number, since 122 + 211 + 120 + 212 + 1 = 666.

It is not a de Polignac number, because 1222111202121 - 2¹ = 1222111202119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222111202094 and 1222111202103.

It is not an unprimeable number, because it can be changed into a prime (1222111202021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1578954655 + ... + 1578955428.

Almost surely, 2^{1222111202121} is an apocalyptic number.

It is an amenable number.

1222111202121 is a deficient number, since it is larger than the sum of its proper divisors (584213365927).

1222111202121 is a wasteful number, since it uses less digits than its factorization.

1222111202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157910132 (or 3157910129 counting only the distinct ones).

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

Adding to 1222111202121 its reverse (1212021112221), we get a palindrome (2434132314342).

The spelling of 1222111202121 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, two hundred two thousand, one hundred twenty-one".