221102101012011 has 16 divisors (see below), whose sum is σ = 312868374985728. Its totient is φ = 138408848988800.

The previous prime is 221102101012003. The next prime is 221102101012081. The reversal of 221102101012011 is 110210101201122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 221102101012011 - 2³ = 221102101012003 is a prime.

It is a super-2 number, since 2×221102101012011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221102101012081) 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, 5029369335 + ... + 5029413296.

It is an arithmetic number, because the mean of its divisors is an integer number (19554273436608).

Almost surely, 2^{221102101012011} is an apocalyptic number.

221102101012011 is a deficient number, since it is larger than the sum of its proper divisors (91766273973717).

221102101012011 is a wasteful number, since it uses less digits than its factorization.

221102101012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10058783082.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 221102101012011 its reverse (110210101201122), we get a palindrome (331312202213133).

It can be divided in two parts, 22 and 1102101012011, that multiplied together give a palindrome (24246222264242).

The spelling of 221102101012011 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred one million, twelve thousand, eleven".