21232103030220 has 96 divisors (see below), whose sum is σ = 59629333413888. Its totient is φ = 5644816175872.

The previous prime is 21232103030189. The next prime is 21232103030231. The reversal of 21232103030220 is 2203030123212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56734957 + ... + 57107963.

It is an arithmetic number, because the mean of its divisors is an integer number (621138889728).

Almost surely, 2^{21232103030220} is an apocalyptic number.

21232103030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21232103030220 is an abundant number, since it is smaller than the sum of its proper divisors (38397230383668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21232103030220 is a wasteful number, since it uses less digits than its factorization.

21232103030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375879 (or 375877 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21232103030220 its reverse (2203030123212), we get a palindrome (23435133153432).

The spelling of 21232103030220 in words is "twenty-one trillion, two hundred thirty-two billion, one hundred three million, thirty thousand, two hundred twenty".