1201220211011 has 8 divisors (see below), whose sum is σ = 1264741405200. Its totient is φ = 1137728924640.

The previous prime is 1201220210947. The next prime is 1201220211041. The reversal of 1201220211011 is 1101120221021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201220211011 - 2⁶ = 1201220210947 is a prime.

It is a super-2 number, since 2×1201220211011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201220211041) 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, 7394480 + ... + 7555181.

It is an arithmetic number, because the mean of its divisors is an integer number (158092675650).

Almost surely, 2^{1201220211011} is an apocalyptic number.

1201220211011 is a deficient number, since it is larger than the sum of its proper divisors (63521194189).

1201220211011 is a wasteful number, since it uses less digits than its factorization.

1201220211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14953909.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1201220211011 its reverse (1101120221021), we get a palindrome (2302340432032).

The spelling of 1201220211011 in words is "one trillion, two hundred one billion, two hundred twenty million, two hundred eleven thousand, eleven".