12100421330 has 24 divisors (see below), whose sum is σ = 23137350948. Its totient is φ = 4555451648.

The previous prime is 12100421329. The next prime is 12100421353. The reversal of 12100421330 is 3312400121.

It can be written as a sum of positive squares in 6 ways, for example, as 11418845881 + 681575449 = 106859^2 + 26107^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 12100421299 and 12100421308.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2090609 + ... + 2096388.

Almost surely, 2^12100421330 is an apocalyptic number.

12100421330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12100421330 is a deficient number, since it is larger than the sum of its proper divisors (11036929618).

12100421330 is a wasteful number, since it uses less digits than its factorization.

12100421330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187038 (or 4187021 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12100421330 its reverse (3312400121), we get a palindrome (15412821451).

The spelling of 12100421330 in words is "twelve billion, one hundred million, four hundred twenty-one thousand, three hundred thirty".