20112201032221 has 8 divisors (see below), whose sum is σ = 20355937235424. Its totient is φ = 19868498651280.

The previous prime is 20112201032219. The next prime is 20112201032237. The reversal of 20112201032221 is 12223010221102.

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 20112201032221 - 2¹ = 20112201032219 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 (20112201035221) 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, 7258051 + ... + 9638656.

It is an arithmetic number, because the mean of its divisors is an integer number (2544492154428).

Almost surely, 2^{20112201032221} is an apocalyptic number.

It is an amenable number.

20112201032221 is a deficient number, since it is larger than the sum of its proper divisors (243736203203).

20112201032221 is a wasteful number, since it uses less digits than its factorization.

20112201032221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16911131.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20112201032221 its reverse (12223010221102), we get a palindrome (32335211253323).

The spelling of 20112201032221 in words is "twenty trillion, one hundred twelve billion, two hundred one million, thirty-two thousand, two hundred twenty-one".