210000021153 has 16 divisors (see below), whose sum is σ = 301652043840. Its totient is φ = 129182117184.

The previous prime is 210000021151. The next prime is 210000021163. The reversal of 210000021153 is 351120000012.

It is not a de Polignac number, because 210000021153 - 2¹ = 210000021151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210000021151) 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 15 ways as a sum of consecutive naturals, for example, 908826 + ... + 1116227.

It is an arithmetic number, because the mean of its divisors is an integer number (18853252740).

Almost surely, 2^210000021153 is an apocalyptic number.

It is an amenable number.

210000021153 is a deficient number, since it is larger than the sum of its proper divisors (91652022687).

210000021153 is a wasteful number, since it uses less digits than its factorization.

210000021153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027728.

The product of its (nonzero) digits is 60, while the sum is 15.

Adding to 210000021153 its reverse (351120000012), we get a palindrome (561120021165).

The spelling of 210000021153 in words is "two hundred ten billion, twenty-one thousand, one hundred fifty-three".