221121011120101 has 8 divisors (see below), whose sum is σ = 221360457916800. Its totient is φ = 220881567392640.

The previous prime is 221121011120003. The next prime is 221121011120143. The reversal of 221121011120101 is 101021110121122.

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 221121011120101 - 2¹¹ = 221121011118053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221121011129101) 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, 162091780 + ... + 163450258.

It is an arithmetic number, because the mean of its divisors is an integer number (27670057239600).

Almost surely, 2^{221121011120101} is an apocalyptic number.

It is an amenable number.

221121011120101 is a deficient number, since it is larger than the sum of its proper divisors (239446796699).

221121011120101 is a wasteful number, since it uses less digits than its factorization.

221121011120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534619.

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

Adding to 221121011120101 its reverse (101021110121122), we get a palindrome (322142121241223).

The spelling of 221121011120101 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, eleven million, one hundred twenty thousand, one hundred one".