121145132650 has 24 divisors (see below), whose sum is σ = 225456489504. Its totient is φ = 48430839600.

The previous prime is 121145132639. The next prime is 121145132677. The reversal of 121145132650 is 56231541121.

It is a super-3 number, since 3×121145132650³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 590296 + ... + 768595.

It is an arithmetic number, because the mean of its divisors is an integer number (9394020396).

Almost surely, 2^121145132650 is an apocalyptic number.

121145132650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121145132650 is a deficient number, since it is larger than the sum of its proper divisors (104311356854).

121145132650 is a wasteful number, since it uses less digits than its factorization.

121145132650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360686 (or 1360681 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 121145132650 its reverse (56231541121), we get a palindrome (177376673771).

The spelling of 121145132650 in words is "one hundred twenty-one billion, one hundred forty-five million, one hundred thirty-two thousand, six hundred fifty".