201220001222 has 16 divisors (see below), whose sum is σ = 303390232992. Its totient is φ = 100090018560.

The previous prime is 201220001209. The next prime is 201220001231. The reversal of 201220001222 is 222100022102.

It is a junction number, because it is equal to n+sod(n) for n = 201220001197 and 201220001206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6553847 + ... + 6584477.

It is an arithmetic number, because the mean of its divisors is an integer number (18961889562).

Almost surely, 2^201220001222 is an apocalyptic number.

201220001222 is a deficient number, since it is larger than the sum of its proper divisors (102170231770).

201220001222 is a wasteful number, since it uses less digits than its factorization.

201220001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47503.

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

Adding to 201220001222 its reverse (222100022102), we get a palindrome (423320023324).

The spelling of 201220001222 in words is "two hundred one billion, two hundred twenty million, one thousand, two hundred twenty-two".