22110201212121 has 48 divisors (see below), whose sum is σ = 35791872342720. Its totient is φ = 13034340063360.

The previous prime is 22110201212093. The next prime is 22110201212129. The reversal of 22110201212121 is 12121210201122.

22110201212121 is a `hidden beast` number, since 22 + 110 + 201 + 212 + 121 = 666.

It is not a de Polignac number, because 22110201212121 - 2¹⁷ = 22110201081049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22110201212094 and 22110201212103.

It is not an unprimeable number, because it can be changed into a prime (22110201212129) 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, 12399090 + ... + 14069748.

It is an arithmetic number, because the mean of its divisors is an integer number (745664007140).

Almost surely, 2^{22110201212121} is an apocalyptic number.

It is an amenable number.

22110201212121 is a deficient number, since it is larger than the sum of its proper divisors (13681671130599).

22110201212121 is a wasteful number, since it uses less digits than its factorization.

22110201212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674326 (or 1674323 counting only the distinct ones).

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

Adding to 22110201212121 its reverse (12121210201122), we get a palindrome (34231411413243).

It can be divided in two parts, 22110201 and 212121, that added together give a palindrome (22322322).

The spelling of 22110201212121 in words is "twenty-two trillion, one hundred ten billion, two hundred one million, two hundred twelve thousand, one hundred twenty-one".