201220122022 has 24 divisors (see below), whose sum is σ = 337504539240. Its totient is φ = 89708037120.

The previous prime is 201220122007. The next prime is 201220122029. The reversal of 201220122022 is 220221022102.

It is a junction number, because it is equal to n+sod(n) for n = 201220121987 and 201220122005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220122029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9150379 + ... + 9172342.

It is an arithmetic number, because the mean of its divisors is an integer number (14062689135).

Almost surely, 2^201220122022 is an apocalyptic number.

201220122022 is a deficient number, since it is larger than the sum of its proper divisors (136284417218).

201220122022 is a wasteful number, since it uses less digits than its factorization.

201220122022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18322776 (or 18322759 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 201220122022 its reverse (220221022102), we get a palindrome (421441144124).

The spelling of 201220122022 in words is "two hundred one billion, two hundred twenty million, one hundred twenty-two thousand, twenty-two".