1211420234244 has 96 divisors (see below), whose sum is σ = 3169440884736. Its totient is φ = 356895262080.

The previous prime is 1211420234197. The next prime is 1211420234261. The reversal of 1211420234244 is 4424320241121.

It is a super-3 number, since 3×1211420234244³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6169509 + ... + 6362835.

It is an arithmetic number, because the mean of its divisors is an integer number (33015009216).

Almost surely, 2^{1211420234244} 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 1211420234244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1584720442368).

1211420234244 is an abundant number, since it is smaller than the sum of its proper divisors (1958020650492).

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

1211420234244 is a wasteful number, since it uses less digits than its factorization.

1211420234244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194665 (or 194663 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 1211420234244 its reverse (4424320241121), we get a palindrome (5635740475365).

The spelling of 1211420234244 in words is "one trillion, two hundred eleven billion, four hundred twenty million, two hundred thirty-four thousand, two hundred forty-four".