201001211221222 has 16 divisors (see below), whose sum is σ = 302217857412912. Its totient is φ = 100261955727360.

The previous prime is 201001211221199. The next prime is 201001211221253. The reversal of 201001211221222 is 222122112100102.

It is a self number, because there is not a number n which added to its sum of digits gives 201001211221222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5706918 + ... + 20846374.

It is an arithmetic number, because the mean of its divisors is an integer number (18888616088307).

Almost surely, 2^{201001211221222} is an apocalyptic number.

201001211221222 is a deficient number, since it is larger than the sum of its proper divisors (101216646191690).

201001211221222 is a wasteful number, since it uses less digits than its factorization.

201001211221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15155223.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201001211221222 its reverse (222122112100102), we get a palindrome (423123323321324).

The spelling of 201001211221222 in words is "two hundred one trillion, one billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty-two".