221110010012001 has 32 divisors (see below), whose sum is σ = 327293896803840. Its totient is φ = 131642846384000.

The previous prime is 221110010011997. The next prime is 221110010012029. The reversal of 221110010012001 is 100210010011122.

It is a cyclic number.

It is not a de Polignac number, because 221110010012001 - 2² = 221110010011997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221110010013001) 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, 36834675 + ... + 42414776.

It is an arithmetic number, because the mean of its divisors is an integer number (10227934275120).

Almost surely, 2^{221110010012001} is an apocalyptic number.

It is an amenable number.

221110010012001 is a deficient number, since it is larger than the sum of its proper divisors (106183886791839).

221110010012001 is a wasteful number, since it uses less digits than its factorization.

221110010012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79250957.

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

Adding to 221110010012001 its reverse (100210010011122), we get a palindrome (321320020023123).

The spelling of 221110010012001 in words is "two hundred twenty-one trillion, one hundred ten billion, ten million, twelve thousand, one".