22210201222121 has 24 divisors (see below), whose sum is σ = 25745255390400. Its totient is φ = 19093044405600.

The previous prime is 22210201222091. The next prime is 22210201222309. The reversal of 22210201222121 is 12122210201222.

It is not a de Polignac number, because 22210201222121 - 2²² = 22210197027817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22210201222093 and 22210201222102.

It is not an unprimeable number, because it can be changed into a prime (22210201222021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7684901 + ... + 10172418.

It is an arithmetic number, because the mean of its divisors is an integer number (1072718974600).

Almost surely, 2^{22210201222121} is an apocalyptic number.

It is an amenable number.

22210201222121 is a deficient number, since it is larger than the sum of its proper divisors (3535054168279).

22210201222121 is a wasteful number, since it uses less digits than its factorization.

22210201222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17857901 (or 17857890 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22210201222121 its reverse (12122210201222), we get a palindrome (34332411423343).

It can be divided in two parts, 22210201222 and 121, that multiplied together give a palindrome (2687434347862).

The spelling of 22210201222121 in words is "twenty-two trillion, two hundred ten billion, two hundred one million, two hundred twenty-two thousand, one hundred twenty-one".