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10021233221 = 373149917923

10021233221 has 8 divisors (see below), whose sum is σ = 10055364000. Its totient is φ = 9987142032.

The previous prime is 10021233179. The next prime is 10021233241. The reversal of 10021233221 is 12233212001.

10021233221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 10021233221 - 210 = 10021232197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10021233221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021233241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550166 + ... + 568088.

It is an arithmetic number, because the mean of its divisors is an integer number (1256920500).

Almost surely, 210021233221 is an apocalyptic number.

It is an amenable number.

10021233221 is a deficient number, since it is larger than the sum of its proper divisors (34130779).

10021233221 is a wasteful number, since it uses less digits than its factorization.

10021233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19795.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10021233221 its reverse (12233212001), we get a palindrome (22254445222).

The spelling of 10021233221 in words is "ten billion, twenty-one million, two hundred thirty-three thousand, two hundred twenty-one".

Divisors: 1 373 1499 17923 559127 6685279 26866577 10021233221