121040252510 has 16 divisors (see below), whose sum is σ = 217898338896. Its totient is φ = 48410348928.

The previous prime is 121040252503. The next prime is 121040252561. The reversal of 121040252510 is 15252040121.

121040252510 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121040252510² (a number of 23 digits) contains 22 as substring.

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, 630107 + ... + 799446.

It is an arithmetic number, because the mean of its divisors is an integer number (13618646181).

Almost surely, 2^121040252510 is an apocalyptic number.

121040252510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121040252510 is a deficient number, since it is larger than the sum of its proper divisors (96858086386).

121040252510 is a wasteful number, since it uses less digits than its factorization.

121040252510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438027.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 121040252510 its reverse (15252040121), we get a palindrome (136292292631).

The spelling of 121040252510 in words is "one hundred twenty-one billion, forty million, two hundred fifty-two thousand, five hundred ten".