206121012151 has 8 divisors (see below), whose sum is σ = 215408201184. Its totient is φ = 196860940320.

The previous prime is 206121012127. The next prime is 206121012203. The reversal of 206121012151 is 151210121602.

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

It is a cyclic number.

It is not a de Polignac number, because 206121012151 - 2¹⁹ = 206120487863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206121013151) 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, 6763756 + ... + 6794161.

It is an arithmetic number, because the mean of its divisors is an integer number (26926025148).

Almost surely, 2^206121012151 is an apocalyptic number.

206121012151 is a deficient number, since it is larger than the sum of its proper divisors (9287189033).

206121012151 is a wasteful number, since it uses less digits than its factorization.

206121012151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13558601.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 206121012151 its reverse (151210121602), we get a palindrome (357331133753).

The spelling of 206121012151 in words is "two hundred six billion, one hundred twenty-one million, twelve thousand, one hundred fifty-one".