121415250211 has 8 divisors (see below), whose sum is σ = 122678216960. Its totient is φ = 120153902472.

The previous prime is 121415250193. The next prime is 121415250217. The reversal of 121415250211 is 112052514121.

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 121415250211 - 2⁹ = 121415249699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121415250217) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 253695 + ... + 554248.

It is an arithmetic number, because the mean of its divisors is an integer number (15334777120).

Almost surely, 2^121415250211 is an apocalyptic number.

121415250211 is a deficient number, since it is larger than the sum of its proper divisors (1262966749).

121415250211 is a wasteful number, since it uses less digits than its factorization.

121415250211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809505.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 121415250211 its reverse (112052514121), we get a palindrome (233467764332).

The spelling of 121415250211 in words is "one hundred twenty-one billion, four hundred fifteen million, two hundred fifty thousand, two hundred eleven".