2151301521206 has 16 divisors (see below), whose sum is σ = 3260303316816. Its totient is φ = 1064534317056.

The previous prime is 2151301521203. The next prime is 2151301521217. The reversal of 2151301521206 is 6021251031512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151301521203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8950310 + ... + 9187526.

It is an arithmetic number, because the mean of its divisors is an integer number (203768957301).

Almost surely, 2^{2151301521206} is an apocalyptic number.

2151301521206 is a deficient number, since it is larger than the sum of its proper divisors (1109001795610).

2151301521206 is a wasteful number, since it uses less digits than its factorization.

2151301521206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284063.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 2151301521206 its reverse (6021251031512), we get a palindrome (8172552552718).

The spelling of 2151301521206 in words is "two trillion, one hundred fifty-one billion, three hundred one million, five hundred twenty-one thousand, two hundred six".