121101442 has 24 divisors (see below), whose sum is σ = 230521680. Its totient is φ = 47181960.

The previous prime is 121101439. The next prime is 121101443. The reversal of 121101442 is 244101121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121101443) 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, 55092 + ... + 57247.

It is an arithmetic number, because the mean of its divisors is an integer number (9605070).

Almost surely, 2^121101442 is an apocalyptic number.

121101442 is a deficient number, since it is larger than the sum of its proper divisors (109420238).

121101442 is a wasteful number, since it uses less digits than its factorization.

121101442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112366 (or 112359 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 121101442 is about 11004.6100339812. The cubic root of 121101442 is about 494.7469263783.

Adding to 121101442 its reverse (244101121), we get a palindrome (365202563).

The spelling of 121101442 in words is "one hundred twenty-one million, one hundred one thousand, four hundred forty-two".