221121121011122 has 64 divisors (see below), whose sum is σ = 348057913351680. Its totient is φ = 105262921958400.

The previous prime is 221121121011107. The next prime is 221121121011169. The reversal of 221121121011122 is 221110121121122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221121121011094 and 221121121011103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362869718 + ... + 363478574.

It is an arithmetic number, because the mean of its divisors is an integer number (5438404896120).

Almost surely, 2^{221121121011122} is an apocalyptic number.

221121121011122 is a deficient number, since it is larger than the sum of its proper divisors (126936792340558).

221121121011122 is a wasteful number, since it uses less digits than its factorization.

221121121011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609507.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 221121121011122 its reverse (221110121121122), we get a palindrome (442231242132244).

The spelling of 221121121011122 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, one hundred twenty-one million, eleven thousand, one hundred twenty-two".