211121012101 has 8 divisors (see below), whose sum is σ = 214721553600. Its totient is φ = 207521211360.

The previous prime is 211121012029. The next prime is 211121012111. The reversal of 211121012101 is 101210121112.

It is a happy number.

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-211121012101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121012111) 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, 405616 + ... + 766006.

It is an arithmetic number, because the mean of its divisors is an integer number (26840194200).

Almost surely, 2^211121012101 is an apocalyptic number.

It is an amenable number.

211121012101 is a deficient number, since it is larger than the sum of its proper divisors (3600541499).

211121012101 is an equidigital number, since it uses as much as digits as its factorization.

211121012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370379.

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

Adding to 211121012101 its reverse (101210121112), we get a palindrome (312331133213).

It can be divided in two parts, 21112 and 1012101, that multiplied together give a palindrome (21367476312).

The spelling of 211121012101 in words is "two hundred eleven billion, one hundred twenty-one million, twelve thousand, one hundred one".