612121029298 has 4 divisors (see below), whose sum is σ = 918181543950. Its totient is φ = 306060514648.

The previous prime is 612121029287. The next prime is 612121029337. The reversal of 612121029298 is 892920121216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 609846979329 + 2274049969 = 780927^2 + 47687^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153030257323 + ... + 153030257326.

Almost surely, 2^612121029298 is an apocalyptic number.

612121029298 is a deficient number, since it is larger than the sum of its proper divisors (306060514652).

612121029298 is a wasteful number, since it uses less digits than its factorization.

612121029298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306060514651.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 612121029298 in words is "six hundred twelve billion, one hundred twenty-one million, twenty-nine thousand, two hundred ninety-eight".