221021230102011 has 12 divisors (see below), whose sum is σ = 322413807608880. Its totient is φ = 145888600726800.

The previous prime is 221021230102007. The next prime is 221021230102037. The reversal of 221021230102011 is 110201032120122.

221021230102011 is a `hidden beast` number, since 2 + 210 + 21 + 230 + 1 + 0 + 201 + 1 = 666.

221021230102011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221021230102011 - 2² = 221021230102007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221021230102711) 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, 121573833031 + ... + 121573834848.

It is an arithmetic number, because the mean of its divisors is an integer number (26867817300740).

Almost surely, 2^{221021230102011} is an apocalyptic number.

221021230102011 is a deficient number, since it is larger than the sum of its proper divisors (101392577506869).

221021230102011 is a wasteful number, since it uses less digits than its factorization.

221021230102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243147667986 (or 243147667983 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 221021230102011 its reverse (110201032120122), we get a palindrome (331222262222133).

It can be divided in two parts, 221021 and 230102011, that added together give a palindrome (230323032).

The spelling of 221021230102011 in words is "two hundred twenty-one trillion, twenty-one billion, two hundred thirty million, one hundred two thousand, eleven".