121203444 has 12 divisors (see below), whose sum is σ = 282808064. Its totient is φ = 40401144.

The previous prime is 121203437. The next prime is 121203463. The reversal of 121203444 is 444302121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×121203444² = 29380549674922272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121203444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050132 + ... + 5050155.

Almost surely, 2^121203444 is an apocalyptic number.

It is an amenable number.

121203444 is an abundant number, since it is smaller than the sum of its proper divisors (161604620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121203444 is a wasteful number, since it uses less digits than its factorization.

121203444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100294 (or 10100292 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 121203444 is about 11009.2435707454. The cubic root of 121203444 is about 494.8857934666.

Adding to 121203444 its reverse (444302121), we get a palindrome (565505565).

The spelling of 121203444 in words is "one hundred twenty-one million, two hundred three thousand, four hundred forty-four".