221023123222122 has 48 divisors (see below), whose sum is σ = 515722641452928. Its totient is φ = 68006848384800.

The previous prime is 221023123222117. The next prime is 221023123222141. The reversal of 221023123222122 is 221222321320122.

221023123222122 is a `hidden beast` number, since 2 + 2 + 1 + 0 + 2 + 312 + 3 + 222 + 122 = 666.

It is a super-2 number, since 2×221023123222122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62820747 + ... + 66245697.

It is an arithmetic number, because the mean of its divisors is an integer number (10744221696936).

Almost surely, 2^{221023123222122} is an apocalyptic number.

221023123222122 is an abundant number, since it is smaller than the sum of its proper divisors (294699518230806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221023123222122 is a wasteful number, since it uses less digits than its factorization.

221023123222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700755 (or 3700752 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 221023123222122 its reverse (221222321320122), we get a palindrome (442245444542244).

The spelling of 221023123222122 in words is "two hundred twenty-one trillion, twenty-three billion, one hundred twenty-three million, two hundred twenty-two thousand, one hundred twenty-two".