10212120434 has 8 divisors (see below), whose sum is σ = 15325547868. Its totient is φ = 5103604480.

The previous prime is 10212120431. The next prime is 10212120449. The reversal of 10212120434 is 43402121201.

It can be written as a sum of positive squares in 2 ways, for example, as 8367675625 + 1844444809 = 91475^2 + 42947^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (10212120431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222667 + ... + 1230990.

Almost surely, 2^10212120434 is an apocalyptic number.

10212120434 is a deficient number, since it is larger than the sum of its proper divisors (5113427434).

10212120434 is a wasteful number, since it uses less digits than its factorization.

10212120434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455740.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10212120434 its reverse (43402121201), we get a palindrome (53614241635).

The spelling of 10212120434 in words is "ten billion, two hundred twelve million, one hundred twenty thousand, four hundred thirty-four".