121620050 has 24 divisors (see below), whose sum is σ = 227668836. Its totient is φ = 48335040.

The previous prime is 121620049. The next prime is 121620053. The reversal of 121620050 is 50026121.

It can be written as a sum of positive squares in 6 ways, for example, as 7579009 + 114041041 = 2753^2 + 10679^2 .

It is not an unprimeable number, because it can be changed into a prime (121620053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104 + ... + 15596.

Almost surely, 2^121620050 is an apocalyptic number.

121620050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121620050 is a deficient number, since it is larger than the sum of its proper divisors (106048786).

121620050 is a wasteful number, since it uses less digits than its factorization.

121620050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15662 (or 15657 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 121620050 is about 11028.1480766265. The cubic root of 121620050 is about 495.4521597139.

Adding to 121620050 its reverse (50026121), we get a palindrome (171646171).

The spelling of 121620050 in words is "one hundred twenty-one million, six hundred twenty thousand, fifty".