2100221534 has 8 divisors (see below), whose sum is σ = 3193487760. Its totient is φ = 1035725616.

The previous prime is 2100221533. The next prime is 2100221551. The reversal of 2100221534 is 4351220012.

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 (2100221533) 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, 7192394 + ... + 7192685.

It is an arithmetic number, because the mean of its divisors is an integer number (399185970).

Almost surely, 2^2100221534 is an apocalyptic number.

2100221534 is a deficient number, since it is larger than the sum of its proper divisors (1093266226).

2100221534 is a wasteful number, since it uses less digits than its factorization.

2100221534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14385154.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2100221534 is about 45828.1740199192. The cubic root of 2100221534 is about 1280.6241938525.

Adding to 2100221534 its reverse (4351220012), we get a palindrome (6451441546).

The spelling of 2100221534 in words is "two billion, one hundred million, two hundred twenty-one thousand, five hundred thirty-four".