1200111221048 has 8 divisors (see below), whose sum is σ = 2250208539480. Its totient is φ = 600055610520.

The previous prime is 1200111221047. The next prime is 1200111221069. The reversal of 1200111221048 is 8401221110021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200111221047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75006951308 + ... + 75006951323.

It is an arithmetic number, because the mean of its divisors is an integer number (281276067435).

Almost surely, 2^{1200111221048} is an apocalyptic number.

It is an amenable number.

1200111221048 is a deficient number, since it is larger than the sum of its proper divisors (1050097318432).

1200111221048 is a wasteful number, since it uses less digits than its factorization.

1200111221048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150013902637 (or 150013902633 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

Adding to 1200111221048 its reverse (8401221110021), we get a palindrome (9601332331069).

The spelling of 1200111221048 in words is "one trillion, two hundred billion, one hundred eleven million, two hundred twenty-one thousand, forty-eight".