1200121212248 has 32 divisors (see below), whose sum is σ = 2572224768000. Its totient is φ = 514230371232.

The previous prime is 1200121212247. The next prime is 1200121212263. The reversal of 1200121212248 is 8422121210021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200121212247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964090 + ... + 2501577.

It is an arithmetic number, because the mean of its divisors is an integer number (80382024000).

Almost surely, 2^{1200121212248} is an apocalyptic number.

It is an amenable number.

1200121212248 is an abundant number, since it is smaller than the sum of its proper divisors (1372103555752).

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

1200121212248 is a wasteful number, since it uses less digits than its factorization.

1200121212248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470479 (or 4470475 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

Adding to 1200121212248 its reverse (8422121210021), we get a palindrome (9622242422269).

The spelling of 1200121212248 in words is "one trillion, two hundred billion, one hundred twenty-one million, two hundred twelve thousand, two hundred forty-eight".