211221022011002 has 16 divisors (see below), whose sum is σ = 320657913892512. Its totient is φ = 104335123201680.

The previous prime is 211221022011001. The next prime is 211221022011031. The reversal of 211221022011002 is 200110220122112.

It is a super-2 number, since 2×211221022011002² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211221022011001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12271028 + ... + 23937839.

It is an arithmetic number, because the mean of its divisors is an integer number (20041119618282).

Almost surely, 2^{211221022011002} is an apocalyptic number.

211221022011002 is a deficient number, since it is larger than the sum of its proper divisors (109436891881510).

211221022011002 is a wasteful number, since it uses less digits than its factorization.

211221022011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36244093.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211221022011002 its reverse (200110220122112), we get a palindrome (411331242133114).

The spelling of 211221022011002 in words is "two hundred eleven trillion, two hundred twenty-one billion, twenty-two million, eleven thousand, two".