1202211220111 has 4 divisors (see below), whose sum is σ = 1311503149224. Its totient is φ = 1092919291000.

The previous prime is 1202211220109. The next prime is 1202211220129. The reversal of 1202211220111 is 1110221122021.

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 1202211220111 - 2¹ = 1202211220109 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 (1202211220151) 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, 54645964540 + ... + 54645964561.

It is an arithmetic number, because the mean of its divisors is an integer number (327875787306).

Almost surely, 2^{1202211220111} is an apocalyptic number.

1202211220111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1202211220111 is a deficient number, since it is larger than the sum of its proper divisors (109291929113).

1202211220111 is a wasteful number, since it uses less digits than its factorization.

1202211220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109291929112.

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

Adding to 1202211220111 its reverse (1110221122021), we get a palindrome (2312432342132).

The spelling of 1202211220111 in words is "one trillion, two hundred two billion, two hundred eleven million, two hundred twenty thousand, one hundred eleven".