10021221158 has 8 divisors (see below), whose sum is σ = 16188126528. Its totient is φ = 4625178984.

The previous prime is 10021221157. The next prime is 10021221163. The reversal of 10021221158 is 85112212001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021221151) 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, 192715766 + ... + 192715817.

It is an arithmetic number, because the mean of its divisors is an integer number (2023515816).

Almost surely, 2^10021221158 is an apocalyptic number.

10021221158 is a deficient number, since it is larger than the sum of its proper divisors (6166905370).

10021221158 is a wasteful number, since it uses less digits than its factorization.

10021221158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385431598.

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 10021221158 its reverse (85112212001), we get a palindrome (95133433159).

The spelling of 10021221158 in words is "ten billion, twenty-one million, two hundred twenty-one thousand, one hundred fifty-eight".