212233121101 has 4 divisors (see below), whose sum is σ = 212247811804. Its totient is φ = 212218430400.

The previous prime is 212233121077. The next prime is 212233121129. The reversal of 212233121101 is 101121332212.

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 24526692100 + 187706429001 = 156610^2 + 433251^2 .

It is a cyclic number.

It is not a de Polignac number, because 212233121101 - 2¹¹ = 212233119053 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 (212233121141) 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, 7323660 + ... + 7352581.

It is an arithmetic number, because the mean of its divisors is an integer number (53061952951).

Almost surely, 2^212233121101 is an apocalyptic number.

It is an amenable number.

212233121101 is a deficient number, since it is larger than the sum of its proper divisors (14690703).

212233121101 is a wasteful number, since it uses less digits than its factorization.

212233121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14690702.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212233121101 its reverse (101121332212), we get a palindrome (313354453313).

The spelling of 212233121101 in words is "two hundred twelve billion, two hundred thirty-three million, one hundred twenty-one thousand, one hundred one".