211211221012203 has 8 divisors (see below), whose sum is σ = 282823609253328. Its totient is φ = 140203156722944.

The previous prime is 211211221012163. The next prime is 211211221012237. The reversal of 211211221012203 is 302210122112112.

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

It is a cyclic number.

It is not a de Polignac number, because 211211221012203 - 2⁶ = 211211221012139 is a prime.

It is a super-2 number, since 2×211211221012203² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211211221012203.

It is not an unprimeable number, because it can be changed into a prime (211211221012703) 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, 151080987150 + ... + 151080988547.

It is an arithmetic number, because the mean of its divisors is an integer number (35352951156666).

Almost surely, 2^{211211221012203} is an apocalyptic number.

211211221012203 is a deficient number, since it is larger than the sum of its proper divisors (71612388241125).

211211221012203 is a wasteful number, since it uses less digits than its factorization.

211211221012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302161975933.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 211211221012203 its reverse (302210122112112), we get a palindrome (513421343124315).

The spelling of 211211221012203 in words is "two hundred eleven trillion, two hundred eleven billion, two hundred twenty-one million, twelve thousand, two hundred three".