121225251310 has 8 divisors (see below), whose sum is σ = 218205452376. Its totient is φ = 48490100520.

The previous prime is 121225251307. The next prime is 121225251331. The reversal of 121225251310 is 13152522121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121225251310² (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 3 ways as a sum of consecutive naturals, for example, 6061262556 + ... + 6061262575.

It is an arithmetic number, because the mean of its divisors is an integer number (27275681547).

Almost surely, 2^121225251310 is an apocalyptic number.

121225251310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121225251310 is a deficient number, since it is larger than the sum of its proper divisors (96980201066).

121225251310 is a wasteful number, since it uses less digits than its factorization.

121225251310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12122525138.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 121225251310 its reverse (13152522121), we get a palindrome (134377773431).

The spelling of 121225251310 in words is "one hundred twenty-one billion, two hundred twenty-five million, two hundred fifty-one thousand, three hundred ten".