1202221210111 has 4 divisors (see below), whose sum is σ = 1202275315800. Its totient is φ = 1202167104424.

The previous prime is 1202221210097. The next prime is 1202221210207. The reversal of 1202221210111 is 1110121222021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1202221210111 - 2²⁵ = 1202187655679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202221211111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27019501 + ... + 27063958.

It is an arithmetic number, because the mean of its divisors is an integer number (300568828950).

Almost surely, 2^{1202221210111} is an apocalyptic number.

1202221210111 is a deficient number, since it is larger than the sum of its proper divisors (54105689).

1202221210111 is an equidigital number, since it uses as much as digits as its factorization.

1202221210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54105688.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1202221210111 its reverse (1110121222021), we get a palindrome (2312342432132).

The spelling of 1202221210111 in words is "one trillion, two hundred two billion, two hundred twenty-one million, two hundred ten thousand, one hundred eleven".