1220211130111 has 8 divisors (see below), whose sum is σ = 1235265696000. Its totient is φ = 1205164974552.

The previous prime is 1220211130109. The next prime is 1220211130169. The reversal of 1220211130111 is 1110311120221.

It is a happy number.

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 1220211130111 - 2¹ = 1220211130109 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 (1224211130111) 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, 1810375 + ... + 2391208.

It is an arithmetic number, because the mean of its divisors is an integer number (154408212000).

Almost surely, 2^{1220211130111} is an apocalyptic number.

1220211130111 is a deficient number, since it is larger than the sum of its proper divisors (15054565889).

1220211130111 is an equidigital number, since it uses as much as digits as its factorization.

1220211130111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4205165.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1220211130111 its reverse (1110311120221), we get a palindrome (2330522250332).

The spelling of 1220211130111 in words is "one trillion, two hundred twenty billion, two hundred eleven million, one hundred thirty thousand, one hundred eleven".