221220020022122 has 48 divisors (see below), whose sum is σ = 375013592456832. Its totient is φ = 97740003240000.

The previous prime is 221220020022091. The next prime is 221220020022173.

221220020022122 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 221220020022094 and 221220020022103.

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, 38447504 + ... + 43825227.

It is an arithmetic number, because the mean of its divisors is an integer number (7812783176184).

Almost surely, 2^{221220020022122} is an apocalyptic number.

221220020022122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221220020022122 is a deficient number, since it is larger than the sum of its proper divisors (153793572434710).

221220020022122 is a wasteful number, since it uses less digits than its factorization.

221220020022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82273067 (or 82273056 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The spelling of 221220020022122 in words is "two hundred twenty-one trillion, two hundred twenty billion, twenty million, twenty-two thousand, one hundred twenty-two".