121511264006 has 16 divisors (see below), whose sum is σ = 203686288848. Its totient is φ = 53885260800.

The previous prime is 121511263997. The next prime is 121511264113. The reversal of 121511264006 is 600462115121.

It is a self number, because there is not a number n which added to its sum of digits gives 121511264006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67355675 + ... + 67357478.

It is an arithmetic number, because the mean of its divisors is an integer number (12730393053).

Almost surely, 2^121511264006 is an apocalyptic number.

121511264006 is a deficient number, since it is larger than the sum of its proper divisors (82175024842).

121511264006 is a wasteful number, since it uses less digits than its factorization.

121511264006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134713207.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 121511264006 its reverse (600462115121), we get a palindrome (721973379127).

The spelling of 121511264006 in words is "one hundred twenty-one billion, five hundred eleven million, two hundred sixty-four thousand, six".