32210212021 has 4 divisors (see below), whose sum is σ = 34687920652. Its totient is φ = 29732503392.

The previous prime is 32210212019. The next prime is 32210212031. The reversal of 32210212021 is 12021201223.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12021201223 = 241 ⋅49880503.

It can be written as a sum of positive squares in 2 ways, for example, as 11296713796 + 20913498225 = 106286^2 + 144615^2 .

It is a cyclic number.

It is not a de Polignac number, because 32210212021 - 2¹ = 32210212019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32210211986 and 32210212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32210212031) 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, 1238854296 + ... + 1238854321.

It is an arithmetic number, because the mean of its divisors is an integer number (8671980163).

Almost surely, 2^32210212021 is an apocalyptic number.

It is an amenable number.

32210212021 is a deficient number, since it is larger than the sum of its proper divisors (2477708631).

32210212021 is a wasteful number, since it uses less digits than its factorization.

32210212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477708630.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 32210212021 its reverse (12021201223), we get a palindrome (44231413244).

The spelling of 32210212021 in words is "thirty-two billion, two hundred ten million, two hundred twelve thousand, twenty-one".