121214522510 has 32 divisors (see below), whose sum is σ = 232115572512. Its totient is φ = 45417415680.

The previous prime is 121214522489. The next prime is 121214522543. The reversal of 121214522510 is 15225412121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121214522510.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1653767 + ... + 1725506.

It is an arithmetic number, because the mean of its divisors is an integer number (7253611641).

Almost surely, 2^121214522510 is an apocalyptic number.

121214522510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121214522510 is a deficient number, since it is larger than the sum of its proper divisors (110901050002).

121214522510 is a wasteful number, since it uses less digits than its factorization.

121214522510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379508.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 121214522510 its reverse (15225412121), we get a palindrome (136439934631).

The spelling of 121214522510 in words is "one hundred twenty-one billion, two hundred fourteen million, five hundred twenty-two thousand, five hundred ten".