211121220120112 has 10 divisors (see below), whose sum is σ = 409047363982748. Its totient is φ = 105560610060048.

The previous prime is 211121220120101. The next prime is 211121220120137. The reversal of 211121220120112 is 211021022121112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 211121220120112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6597538128738 + ... + 6597538128769.

Almost surely, 2^{211121220120112} is an apocalyptic number.

It is an amenable number.

211121220120112 is a deficient number, since it is larger than the sum of its proper divisors (197926143862636).

211121220120112 is a wasteful number, since it uses less digits than its factorization.

211121220120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13195076257515 (or 13195076257509 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211121220120112 its reverse (211021022121112), we get a palindrome (422142242241224).

The spelling of 211121220120112 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twenty thousand, one hundred twelve".