2121412120434 has 24 divisors (see below), whose sum is σ = 4604442674832. Its totient is φ = 705898950840.

The previous prime is 2121412120391. The next prime is 2121412120447. The reversal of 2121412120434 is 4340212141212.

2121412120434 is a `hidden beast` number, since 2 + 1 + 2 + 14 + 1 + 212 + 0 + 434 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2121412120398 and 2121412120407.

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, 103191324 + ... + 103211879.

It is an arithmetic number, because the mean of its divisors is an integer number (191851778118).

Almost surely, 2^{2121412120434} is an apocalyptic number.

2121412120434 is an abundant number, since it is smaller than the sum of its proper divisors (2483030554398).

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

2121412120434 is a wasteful number, since it uses less digits than its factorization.

2121412120434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206403782 (or 206403779 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 2121412120434 its reverse (4340212141212), we get a palindrome (6461624261646).

The spelling of 2121412120434 in words is "two trillion, one hundred twenty-one billion, four hundred twelve million, one hundred twenty thousand, four hundred thirty-four".