1200220221111 has 8 divisors (see below), whose sum is σ = 1601648665584. Its totient is φ = 799469295360.

The previous prime is 1200220221059. The next prime is 1200220221113. The reversal of 1200220221111 is 1111220220021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200220221111 - 2³⁰ = 1199146479287 is a prime.

It is a super-4 number, since 4×1200220221111⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200220221113) 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, 169375546 + ... + 169382631.

It is an arithmetic number, because the mean of its divisors is an integer number (200206083198).

Almost surely, 2^{1200220221111} is an apocalyptic number.

1200220221111 is a deficient number, since it is larger than the sum of its proper divisors (401428444473).

1200220221111 is a wasteful number, since it uses less digits than its factorization.

1200220221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338759361.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1200220221111 its reverse (1111220220021), we get a palindrome (2311440441132).

The spelling of 1200220221111 in words is "one trillion, two hundred billion, two hundred twenty million, two hundred twenty-one thousand, one hundred eleven".