211321112001212 has 12 divisors (see below), whose sum is σ = 369813338359080. Its totient is φ = 105660158184336.

The previous prime is 211321112001199. The next prime is 211321112001269. The reversal of 211321112001212 is 212100211123112.

It is a super-2 number, since 2×211321112001212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98257262 + ... + 100384917.

It is an arithmetic number, because the mean of its divisors is an integer number (30817778196590).

Almost surely, 2^{211321112001212} is an apocalyptic number.

It is an amenable number.

211321112001212 is a deficient number, since it is larger than the sum of its proper divisors (158492226357868).

211321112001212 is a wasteful number, since it uses less digits than its factorization.

211321112001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198908140 (or 198908138 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 211321112001212 its reverse (212100211123112), we get a palindrome (423421323124324).

The spelling of 211321112001212 in words is "two hundred eleven trillion, three hundred twenty-one billion, one hundred twelve million, one thousand, two hundred twelve".