391001220102102 has 64 divisors (see below), whose sum is σ = 792402667852800. Its totient is φ = 128602484974080.

The previous prime is 391001220102043. The next prime is 391001220102167. The reversal of 391001220102102 is 201201022100193.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4923726777 + ... + 4923806187.

It is an arithmetic number, because the mean of its divisors is an integer number (12381291685200).

Almost surely, 2^{391001220102102} is an apocalyptic number.

391001220102102 is an abundant number, since it is smaller than the sum of its proper divisors (401401447750698).

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

391001220102102 is a wasteful number, since it uses less digits than its factorization.

391001220102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85941.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 391001220102102 its reverse (201201022100193), we get a palindrome (592202242202295).

The spelling of 391001220102102 in words is "three hundred ninety-one trillion, one billion, two hundred twenty million, one hundred two thousand, one hundred two".