211121101012012 has 48 divisors (see below), whose sum is σ = 378385334397504. Its totient is φ = 103040582400000.

The previous prime is 211121101011917. The next prime is 211121101012061. The reversal of 211121101012012 is 210210101121112.

It is a super-4 number, since 4×211121101012012⁴ (a number of 58 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1428417988 + ... + 1428565780.

It is an arithmetic number, because the mean of its divisors is an integer number (7883027799948).

Almost surely, 2^{211121101012012} is an apocalyptic number.

It is an amenable number.

211121101012012 is a deficient number, since it is larger than the sum of its proper divisors (167264233385492).

211121101012012 is a wasteful number, since it uses less digits than its factorization.

211121101012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197770 (or 197768 counting only the distinct ones).

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

Adding to 211121101012012 its reverse (210210101121112), we get a palindrome (421331202133124).

The spelling of 211121101012012 in words is "two hundred eleven trillion, one hundred twenty-one billion, one hundred one million, twelve thousand, twelve".