201211221002 has 16 divisors (see below), whose sum is σ = 334835316000. Its totient is φ = 89909481840.

The previous prime is 201211220983. The next prime is 201211221097. The reversal of 201211221002 is 200122112102.

201211221002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77506877 + ... + 77509472.

It is an arithmetic number, because the mean of its divisors is an integer number (20927207250).

Almost surely, 2^201211221002 is an apocalyptic number.

201211221002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201211221002 is a deficient number, since it is larger than the sum of its proper divisors (133624094998).

201211221002 is a wasteful number, since it uses less digits than its factorization.

201211221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155016421.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201211221002 its reverse (200122112102), we get a palindrome (401333333104).

The spelling of 201211221002 in words is "two hundred one billion, two hundred eleven million, two hundred twenty-one thousand, two".