211101121012 has 12 divisors (see below), whose sum is σ = 373577827140. Its totient is φ = 104364598976.

The previous prime is 211101121001. The next prime is 211101121013. The reversal of 211101121012 is 210121101112.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 133017760656 + 78083360356 = 364716^2 + 279434^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211101120983 and 211101121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211101121013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296489983 + ... + 296490694.

It is an arithmetic number, because the mean of its divisors is an integer number (31131485595).

Almost surely, 2^211101121012 is an apocalyptic number.

It is an amenable number.

211101121012 is a deficient number, since it is larger than the sum of its proper divisors (162476706128).

211101121012 is a wasteful number, since it uses less digits than its factorization.

211101121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592980770 (or 592980768 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211101121012 its reverse (210121101112), we get a palindrome (421222222124).

The spelling of 211101121012 in words is "two hundred eleven billion, one hundred one million, one hundred twenty-one thousand, twelve".