201222021022 has 16 divisors (see below), whose sum is σ = 331785932544. Its totient is φ = 90766351000.

The previous prime is 201222021019. The next prime is 201222021023. The reversal of 201222021022 is 220120222102.

It is a junction number, because it is equal to n+sod(n) for n = 201222020987 and 201222021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201222021023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34907254 + ... + 34913017.

It is an arithmetic number, because the mean of its divisors is an integer number (20736620784).

Almost surely, 2^201222021022 is an apocalyptic number.

201222021022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201222021022 is a deficient number, since it is larger than the sum of its proper divisors (130563911522).

201222021022 is a wasteful number, since it uses less digits than its factorization.

201222021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69820415.

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

Adding to 201222021022 its reverse (220120222102), we get a palindrome (421342243124).

The spelling of 201222021022 in words is "two hundred one billion, two hundred twenty-two million, twenty-one thousand, twenty-two".