22101221002011 has 4 divisors (see below), whose sum is σ = 29468294669352. Its totient is φ = 14734147334672.

The previous prime is 22101221002009. The next prime is 22101221002013. The reversal of 22101221002011 is 11020012210122.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22101221002009) and next prime (22101221002013).

It is a cyclic number.

It is not a de Polignac number, because 22101221002011 - 2¹ = 22101221002009 is a prime.

It is a super-2 number, since 2×22101221002011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22101221002013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3683536833666 + ... + 3683536833671.

It is an arithmetic number, because the mean of its divisors is an integer number (7367073667338).

Almost surely, 2^{22101221002011} is an apocalyptic number.

22101221002011 is a deficient number, since it is larger than the sum of its proper divisors (7367073667341).

22101221002011 is an equidigital number, since it uses as much as digits as its factorization.

22101221002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7367073667340.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22101221002011 its reverse (11020012210122), we get a palindrome (33121233212133).

The spelling of 22101221002011 in words is "twenty-two trillion, one hundred one billion, two hundred twenty-one million, two thousand, eleven".