2221012531401 has 4 divisors (see below), whose sum is σ = 2961350041872. Its totient is φ = 1480675020932.

The previous prime is 2221012531393. The next prime is 2221012531421. The reversal of 2221012531401 is 1041352101222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2221012531401 - 2³ = 2221012531393 is a prime.

It is a super-2 number, since 2×2221012531401² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2221012531421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370168755231 + ... + 370168755236.

It is an arithmetic number, because the mean of its divisors is an integer number (740337510468).

Almost surely, 2^{2221012531401} is an apocalyptic number.

It is an amenable number.

2221012531401 is a deficient number, since it is larger than the sum of its proper divisors (740337510471).

2221012531401 is an equidigital number, since it uses as much as digits as its factorization.

2221012531401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740337510470.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 2221012531401 its reverse (1041352101222), we get a palindrome (3262364632623).

The spelling of 2221012531401 in words is "two trillion, two hundred twenty-one billion, twelve million, five hundred thirty-one thousand, four hundred one".