1200221010111 has 8 divisors (see below), whose sum is σ = 1600307504944. Its totient is φ = 800140927680.

The previous prime is 1200221010101. The next prime is 1200221010127. The reversal of 1200221010111 is 1110101220021.

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

It is not a de Polignac number, because 1200221010111 - 2⁶ = 1200221010047 is a prime.

It is a super-2 number, since 2×1200221010111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200221010101) 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, 1147900 + ... + 1928241.

It is an arithmetic number, because the mean of its divisors is an integer number (200038438118).

Almost surely, 2^{1200221010111} is an apocalyptic number.

1200221010111 is a deficient number, since it is larger than the sum of its proper divisors (400086494833).

1200221010111 is a wasteful number, since it uses less digits than its factorization.

1200221010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206201.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1200221010111 its reverse (1110101220021), we get a palindrome (2310322230132).

The spelling of 1200221010111 in words is "one trillion, two hundred billion, two hundred twenty-one million, ten thousand, one hundred eleven".