221002111100101 has 8 divisors (see below), whose sum is σ = 221267836702080. Its totient is φ = 220736401044432.

The previous prime is 221002111100093. The next prime is 221002111100107. The reversal of 221002111100101 is 101001111200122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221002111100101 - 2³ = 221002111100093 is a prime.

It is a super-2 number, since 2×221002111100101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002111100107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24688176 + ... + 32426998.

It is an arithmetic number, because the mean of its divisors is an integer number (27658479587760).

Almost surely, 2^{221002111100101} is an apocalyptic number.

It is an amenable number.

221002111100101 is a deficient number, since it is larger than the sum of its proper divisors (265725601979).

221002111100101 is an equidigital number, since it uses as much as digits as its factorization.

221002111100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7773155.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 221002111100101 its reverse (101001111200122), we get a palindrome (322003222300223).

The spelling of 221002111100101 in words is "two hundred twenty-one trillion, two billion, one hundred eleven million, one hundred thousand, one hundred one".