1201212444 has 48 divisors (see below), whose sum is σ = 2936989440. Its totient is φ = 381384960.

The previous prime is 1201212431. The next prime is 1201212479. The reversal of 1201212444 is 4442121021.

It is a super-2 number, since 2×1201212444² = 2885822671240906272, 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 1201212444.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 57487 + ... + 75545.

It is an arithmetic number, because the mean of its divisors is an integer number (61187280).

Almost surely, 2^1201212444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201212444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1468494720).

1201212444 is an abundant number, since it is smaller than the sum of its proper divisors (1735776996).

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

1201212444 is a wasteful number, since it uses less digits than its factorization.

1201212444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18330 (or 18328 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1201212444 is about 34658.5118549542. The cubic root of 1201212444 is about 1063.0163414950.

Adding to 1201212444 its reverse (4442121021), we get a palindrome (5643333465).

The spelling of 1201212444 in words is "one billion, two hundred one million, two hundred twelve thousand, four hundred forty-four".