121141772 has 6 divisors (see below), whose sum is σ = 211998108. Its totient is φ = 60570884.

The previous prime is 121141753. The next prime is 121141781. The reversal of 121141772 is 277141121.

It is a super-3 number, since 3×121141772³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15142718 + ... + 15142725.

It is an arithmetic number, because the mean of its divisors is an integer number (35333018).

Almost surely, 2^121141772 is an apocalyptic number.

It is an amenable number.

121141772 is a deficient number, since it is larger than the sum of its proper divisors (90856336).

121141772 is a wasteful number, since it uses less digits than its factorization.

121141772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30285447 (or 30285445 counting only the distinct ones).

The product of its digits is 784, while the sum is 26.

The square root of 121141772 is about 11006.4422953105. The cubic root of 121141772 is about 494.8018415762.

Adding to 121141772 its reverse (277141121), we get a palindrome (398282893).

The spelling of 121141772 in words is "one hundred twenty-one million, one hundred forty-one thousand, seven hundred seventy-two".