1220410021311 has 24 divisors (see below), whose sum is σ = 2010087097200. Its totient is φ = 706843812096.

The previous prime is 1220410021301. The next prime is 1220410021361. The reversal of 1220410021311 is 1131200140221.

1220410021311 is a `hidden beast` number, since 1 + 220 + 410 + 0 + 2 + 1 + 31 + 1 = 666.

It is not a de Polignac number, because 1220410021311 - 2⁷ = 1220410021183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220410021301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306787861 + ... + 306791838.

It is an arithmetic number, because the mean of its divisors is an integer number (83753629050).

Almost surely, 2^{1220410021311} is an apocalyptic number.

1220410021311 is a deficient number, since it is larger than the sum of its proper divisors (789677075889).

1220410021311 is a wasteful number, since it uses less digits than its factorization.

1220410021311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613579735 (or 613579732 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1220410021311 its reverse (1131200140221), we get a palindrome (2351610161532).

The spelling of 1220410021311 in words is "one trillion, two hundred twenty billion, four hundred ten million, twenty-one thousand, three hundred eleven".