2221022121011 has 16 divisors (see below), whose sum is σ = 2261860106880. Its totient is φ = 2180292189120.

The previous prime is 2221022121007. The next prime is 2221022121083. The reversal of 2221022121011 is 1101212201222.

It is a cyclic number.

It is not a de Polignac number, because 2221022121011 - 2² = 2221022121007 is a prime.

It is a super-2 number, since 2×2221022121011² (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 (2221022121091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324659951 + ... + 324666791.

It is an arithmetic number, because the mean of its divisors is an integer number (141366256680).

Almost surely, 2^{2221022121011} is an apocalyptic number.

2221022121011 is a deficient number, since it is larger than the sum of its proper divisors (40837985869).

2221022121011 is an equidigital number, since it uses as much as digits as its factorization.

2221022121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13874.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2221022121011 its reverse (1101212201222), we get a palindrome (3322234322233).

The spelling of 2221022121011 in words is "two trillion, two hundred twenty-one billion, twenty-two million, one hundred twenty-one thousand, eleven".