22001021011011 has 32 divisors (see below), whose sum is σ = 33672889382400. Its totient is φ = 12516694168320.

The previous prime is 22001021011007. The next prime is 22001021011037. The reversal of 22001021011011 is 11011012010022.

It is not a de Polignac number, because 22001021011011 - 2² = 22001021011007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22001021010011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196348360 + ... + 196460378.

It is an arithmetic number, because the mean of its divisors is an integer number (1052277793200).

Almost surely, 2^{22001021011011} is an apocalyptic number.

22001021011011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22001021011011 is a deficient number, since it is larger than the sum of its proper divisors (11671868371389).

22001021011011 is a wasteful number, since it uses less digits than its factorization.

22001021011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153099.

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

Adding to 22001021011011 its reverse (11011012010022), we get a palindrome (33012033021033).

The spelling of 22001021011011 in words is "twenty-two trillion, one billion, twenty-one million, eleven thousand, eleven".