211121102012 has 12 divisors (see below), whose sum is σ = 388907293320. Its totient is φ = 100004732496.

The previous prime is 211121102009. The next prime is 211121102039. The reversal of 211121102012 is 210201121112.

It is a super-2 number, since 2×211121102012² (a number of 23 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, 1388954543 + ... + 1388954694.

It is an arithmetic number, because the mean of its divisors is an integer number (32408941110).

Almost surely, 2^211121102012 is an apocalyptic number.

It is an amenable number.

211121102012 is a deficient number, since it is larger than the sum of its proper divisors (177786191308).

211121102012 is a wasteful number, since it uses less digits than its factorization.

211121102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777909260 (or 2777909258 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211121102012 its reverse (210201121112), we get a palindrome (421322223124).

The spelling of 211121102012 in words is "two hundred eleven billion, one hundred twenty-one million, one hundred two thousand, twelve".