121444402 has 8 divisors (see below), whose sum is σ = 188448300. Its totient is φ = 58628304.

The previous prime is 121444369. The next prime is 121444403. The reversal of 121444402 is 204444121.

It can be written as a sum of positive squares in 2 ways, for example, as 111703761 + 9740641 = 10569^2 + 3121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (121444403) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1046877 + ... + 1046992.

Almost surely, 2^121444402 is an apocalyptic number.

121444402 is a deficient number, since it is larger than the sum of its proper divisors (67003898).

121444402 is a wasteful number, since it uses less digits than its factorization.

121444402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093900.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 121444402 is about 11020.1815774514. The cubic root of 121444402 is about 495.2135282559.

Adding to 121444402 its reverse (204444121), we get a palindrome (325888523).

The spelling of 121444402 in words is "one hundred twenty-one million, four hundred forty-four thousand, four hundred two".