1201121111002 has 16 divisors (see below), whose sum is σ = 1822007940480. Its totient is φ = 593797051008.

The previous prime is 1201121110979. The next prime is 1201121111009. The reversal of 1201121111002 is 2001111211021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1201121111009) 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, 2777908 + ... + 3181039.

It is an arithmetic number, because the mean of its divisors is an integer number (113875496280).

Almost surely, 2^{1201121111002} is an apocalyptic number.

1201121111002 is a deficient number, since it is larger than the sum of its proper divisors (620886829478).

1201121111002 is a wasteful number, since it uses less digits than its factorization.

1201121111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5960085.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1201121111002 its reverse (2001111211021), we get a palindrome (3202232322023).

The spelling of 1201121111002 in words is "one trillion, two hundred one billion, one hundred twenty-one million, one hundred eleven thousand, two".