212010231101 has 4 divisors (see below), whose sum is σ = 212215469532. Its totient is φ = 211804992672.

The previous prime is 212010231091. The next prime is 212010231109. The reversal of 212010231101 is 101132010212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 161788972900 + 50221258201 = 402230^2 + 224101^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212010231101 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 (212010231109) 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, 102617666 + ... + 102619731.

It is an arithmetic number, because the mean of its divisors is an integer number (53053867383).

Almost surely, 2^212010231101 is an apocalyptic number.

It is an amenable number.

212010231101 is a deficient number, since it is larger than the sum of its proper divisors (205238431).

212010231101 is a wasteful number, since it uses less digits than its factorization.

212010231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205238430.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 212010231101 its reverse (101132010212), we get a palindrome (313142241313).

The spelling of 212010231101 in words is "two hundred twelve billion, ten million, two hundred thirty-one thousand, one hundred one".