2221202122011 has 12 divisors (see below), whose sum is σ = 3236796014088. Its totient is φ = 1467696976704.

The previous prime is 2221202121989. The next prime is 2221202122019. The reversal of 2221202122011 is 1102212021222.

It is a happy number.

It is not a de Polignac number, because 2221202122011 - 2⁷ = 2221202121883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221202122019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1092035425 + ... + 1092037458.

It is an arithmetic number, because the mean of its divisors is an integer number (269733001174).

Almost surely, 2^{2221202122011} is an apocalyptic number.

2221202122011 is a deficient number, since it is larger than the sum of its proper divisors (1015593892077).

2221202122011 is a wasteful number, since it uses less digits than its factorization.

2221202122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184073002 (or 2184072999 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2221202122011 its reverse (1102212021222), we get a palindrome (3323414143233).

The spelling of 2221202122011 in words is "two trillion, two hundred twenty-one billion, two hundred two million, one hundred twenty-two thousand, eleven".