151166202121 has 16 divisors (see below), whose sum is σ = 170452929600. Its totient is φ = 132879902400.

The previous prime is 151166202097. The next prime is 151166202137. The reversal of 151166202121 is 121202661151.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151166202121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151166202121.

It is not an unprimeable number, because it can be changed into a prime (151166200121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1869606 + ... + 1948783.

It is an arithmetic number, because the mean of its divisors is an integer number (10653308100).

Almost surely, 2^151166202121 is an apocalyptic number.

151166202121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

151166202121 is a deficient number, since it is larger than the sum of its proper divisors (19286727479).

151166202121 is a wasteful number, since it uses less digits than its factorization.

151166202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3818520.

The product of its (nonzero) digits is 1440, while the sum is 28.

Adding to 151166202121 its reverse (121202661151), we get a palindrome (272368863272).

The spelling of 151166202121 in words is "one hundred fifty-one billion, one hundred sixty-six million, two hundred two thousand, one hundred twenty-one".