201222122 has 12 divisors (see below), whose sum is σ = 318556386. Its totient is φ = 95315400.

The previous prime is 201222121. The next prime is 201222163. The reversal of 201222122 is 221222102.

201222122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 117700801 + 83521321 = 10849^2 + 9139^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201222097 and 201222106.

It is not an unprimeable number, because it can be changed into a prime (201222121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138629 + ... + 140072.

Almost surely, 2^201222122 is an apocalyptic number.

201222122 is a deficient number, since it is larger than the sum of its proper divisors (117334264).

201222122 is a wasteful number, since it uses less digits than its factorization.

201222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278741 (or 278722 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 201222122 is about 14185.2783546887. The cubic root of 201222122 is about 585.9922983919.

Adding to 201222122 its reverse (221222102), we get a palindrome (422444224).

The spelling of 201222122 in words is "two hundred one million, two hundred twenty-two thousand, one hundred twenty-two".