1222111201011 has 8 divisors (see below), whose sum is σ = 1630972439760. Its totient is φ = 813995381472.

The previous prime is 1222111200991. The next prime is 1222111201093. The reversal of 1222111201011 is 1101021112221.

It is a happy number.

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

It is not a de Polignac number, because 1222111201011 - 2¹¹ = 1222111198963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222111201511) 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, 186350976 + ... + 186357533.

It is an arithmetic number, because the mean of its divisors is an integer number (203871554970).

Almost surely, 2^{1222111201011} is an apocalyptic number.

1222111201011 is a deficient number, since it is larger than the sum of its proper divisors (408861238749).

1222111201011 is a wasteful number, since it uses less digits than its factorization.

1222111201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372709605.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1222111201011 its reverse (1101021112221), we get a palindrome (2323132313232).

The spelling of 1222111201011 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, two hundred one thousand, eleven".