101121242 has 4 divisors (see below), whose sum is σ = 151681866. Its totient is φ = 50560620.

The previous prime is 101121203. The next prime is 101121247. The reversal of 101121242 is 242121101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72914521 + 28206721 = 8539^2 + 5311^2 .

It is not an unprimeable number, because it can be changed into a prime (101121247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25280309 + ... + 25280312.

Almost surely, 2^101121242 is an apocalyptic number.

101121242 is a deficient number, since it is larger than the sum of its proper divisors (50560624).

101121242 is an equidigital number, since it uses as much as digits as its factorization.

101121242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50560623.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 101121242 is about 10055.9058269258. The cubic root of 101121242 is about 465.8872211992.

Adding to 101121242 its reverse (242121101), we get a palindrome (343242343).

The spelling of 101121242 in words is "one hundred one million, one hundred twenty-one thousand, two hundred forty-two".