121401850 has 12 divisors (see below), whose sum is σ = 225807534. Its totient is φ = 48560720.

The previous prime is 121401829. The next prime is 121401851. The reversal of 121401850 is 58104121.

It can be written as a sum of positive squares in 3 ways, for example, as 95707089 + 25694761 = 9783^2 + 5069^2 .

It is not an unprimeable number, because it can be changed into a prime (121401851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1213969 + ... + 1214068.

Almost surely, 2^121401850 is an apocalyptic number.

121401850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121401850 is a deficient number, since it is larger than the sum of its proper divisors (104405684).

121401850 is a wasteful number, since it uses less digits than its factorization.

121401850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428049 (or 2428044 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 121401850 is about 11018.2507686111. The cubic root of 121401850 is about 495.1556834388.

Adding to 121401850 its reverse (58104121), we get a palindrome (179505971).

The spelling of 121401850 in words is "one hundred twenty-one million, four hundred one thousand, eight hundred fifty".