2100421216232 has 8 divisors (see below), whose sum is σ = 3938289780450. Its totient is φ = 1050210608112.

The previous prime is 2100421216211. The next prime is 2100421216253. The reversal of 2100421216232 is 2326121240012.

It is an interprime number because it is at equal distance from previous prime (2100421216211) and next prime (2100421216253).

It can be written as a sum of positive squares in only one way, i.e., 2083016746756 + 17404469476 = 1443266^2 + 131926^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131276326007 + ... + 131276326022.

Almost surely, 2^{2100421216232} is an apocalyptic number.

It is an amenable number.

2100421216232 is a deficient number, since it is larger than the sum of its proper divisors (1837868564218).

2100421216232 is a wasteful number, since it uses less digits than its factorization.

2100421216232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262552652035 (or 262552652031 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 2100421216232 its reverse (2326121240012), we get a palindrome (4426542456244).

The spelling of 2100421216232 in words is "two trillion, one hundred billion, four hundred twenty-one million, two hundred sixteen thousand, two hundred thirty-two".