211221201002 has 8 divisors (see below), whose sum is σ = 362093487456. Its totient is φ = 90523371852.

The previous prime is 211221200977. The next prime is 211221201041. The reversal of 211221201002 is 200102122112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×211221201002² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 15087228643 = 211221201002 / (2 + 1 + 1 + 2 + 2 + 1 + 2 + 0 + 1 + 0 + 0 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7543614308 + ... + 7543614335.

It is an arithmetic number, because the mean of its divisors is an integer number (45261685932).

Almost surely, 2^211221201002 is an apocalyptic number.

211221201002 is a deficient number, since it is larger than the sum of its proper divisors (150872286454).

211221201002 is a wasteful number, since it uses less digits than its factorization.

211221201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15087228652.

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

Adding to 211221201002 its reverse (200102122112), we get a palindrome (411323323114).

The spelling of 211221201002 in words is "two hundred eleven billion, two hundred twenty-one million, two hundred one thousand, two".