211121211212203 has 8 divisors (see below), whose sum is σ = 213743219826816. Its totient is φ = 208509628080000.

The previous prime is 211121211212159. The next prime is 211121211212251. The reversal of 211121211212203 is 302212112121112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211121211212203 is a prime.

It is a super-2 number, since 2×211121211212203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211121211612203) 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, 2606329851 + ... + 2606410852.

It is an arithmetic number, because the mean of its divisors is an integer number (26717902478352).

Almost surely, 2^{211121211212203} is an apocalyptic number.

211121211212203 is a deficient number, since it is larger than the sum of its proper divisors (2622008614613).

211121211212203 is a wasteful number, since it uses less digits than its factorization.

211121211212203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212741205.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 211121211212203 its reverse (302212112121112), we get a palindrome (513333323333315).

The spelling of 211121211212203 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred eleven million, two hundred twelve thousand, two hundred three".