2211022112121 has 48 divisors (see below), whose sum is σ = 3237572782080. Its totient is φ = 1453874641920.

The previous prime is 2211022112111. The next prime is 2211022112137. The reversal of 2211022112121 is 1212112201122.

2211022112121 is a `hidden beast` number, since 221 + 10 + 221 + 1 + 212 + 1 = 666.

It is not a de Polignac number, because 2211022112121 - 2¹⁰ = 2211022111097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2211022112094 and 2211022112103.

It is not an unprimeable number, because it can be changed into a prime (2211022112111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 792763795 + ... + 792766583.

It is an arithmetic number, because the mean of its divisors is an integer number (67449432960).

Almost surely, 2^{2211022112121} is an apocalyptic number.

It is an amenable number.

2211022112121 is a deficient number, since it is larger than the sum of its proper divisors (1026550669959).

2211022112121 is a wasteful number, since it uses less digits than its factorization.

2211022112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5646 (or 5643 counting only the distinct ones).

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

Adding to 2211022112121 its reverse (1212112201122), we get a palindrome (3423134313243).

The spelling of 2211022112121 in words is "two trillion, two hundred eleven billion, twenty-two million, one hundred twelve thousand, one hundred twenty-one".