20215202330 has 16 divisors (see below), whose sum is σ = 36394215840. Its totient is φ = 8084558352.

The previous prime is 20215202321. The next prime is 20215202339. The reversal of 20215202330 is 3320251202.

It is an interprime number because it is at equal distance from previous prime (20215202321) and next prime (20215202339).

It is not an unprimeable number, because it can be changed into a prime (20215202339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133760 + ... + 241499.

It is an arithmetic number, because the mean of its divisors is an integer number (2274638490).

Almost surely, 2^20215202330 is an apocalyptic number.

20215202330 is a deficient number, since it is larger than the sum of its proper divisors (16179013510).

20215202330 is a wasteful number, since it uses less digits than its factorization.

20215202330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380653.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 20215202330 its reverse (3320251202), we get a palindrome (23535453532).

The spelling of 20215202330 in words is "twenty billion, two hundred fifteen million, two hundred two thousand, three hundred thirty".