22001001011211 has 16 divisors (see below), whose sum is σ = 30611290127616. Its totient is φ = 14029073024736.

The previous prime is 22001001011191. The next prime is 22001001011251. The reversal of 22001001011211 is 11211010010022.

It is a de Polignac number, because none of the positive numbers 2^k-22001001011211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22001001011251) 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, 4485340 + ... + 8007513.

It is an arithmetic number, because the mean of its divisors is an integer number (1913205632976).

Almost surely, 2^{22001001011211} is an apocalyptic number.

22001001011211 is a deficient number, since it is larger than the sum of its proper divisors (8610289116405).

22001001011211 is a wasteful number, since it uses less digits than its factorization.

22001001011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12518402.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22001001011211 its reverse (11211010010022), we get a palindrome (33212011021233).

The spelling of 22001001011211 in words is "twenty-two trillion, one billion, one million, eleven thousand, two hundred eleven".