211100121012212 has 12 divisors (see below), whose sum is σ = 369425464368996. Its totient is φ = 105549988335360.

The previous prime is 211100121012199. The next prime is 211100121012233. The reversal of 211100121012212 is 212210121001112.

It can be written as a sum of positive squares in 2 ways, for example, as 89208893942116 + 121891227070096 = 9445046^2 + 11040436^2 .

It is a super-2 number, since 2×211100121012212² (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, 11170589 + ... + 23387652.

It is an arithmetic number, because the mean of its divisors is an integer number (30785455364083).

Almost surely, 2^{211100121012212} is an apocalyptic number.

It is an amenable number.

211100121012212 is a deficient number, since it is larger than the sum of its proper divisors (158325343356784).

211100121012212 is a wasteful number, since it uses less digits than its factorization.

211100121012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36085378 (or 36085376 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211100121012212 its reverse (212210121001112), we get a palindrome (423310242013324).

The spelling of 211100121012212 in words is "two hundred eleven trillion, one hundred billion, one hundred twenty-one million, twelve thousand, two hundred twelve".