2321212101 has 8 divisors (see below), whose sum is σ = 3333022560. Its totient is φ = 1428438192.

The previous prime is 2321212087. The next prime is 2321212169. The reversal of 2321212101 is 1012121232.

2321212101 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2321212101 - 2⁷ = 2321211973 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321212001) 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, 29759091 + ... + 29759168.

It is an arithmetic number, because the mean of its divisors is an integer number (416627820).

Almost surely, 2^2321212101 is an apocalyptic number.

It is an amenable number.

2321212101 is a deficient number, since it is larger than the sum of its proper divisors (1011810459).

2321212101 is a wasteful number, since it uses less digits than its factorization.

2321212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59518275.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2321212101 is about 48178.9591107986. The cubic root of 2321212101 is about 1324.0516961603.

Adding to 2321212101 its reverse (1012121232), we get a palindrome (3333333333).

The spelling of 2321212101 in words is "two billion, three hundred twenty-one million, two hundred twelve thousand, one hundred one".