20101120002221 has 8 divisors (see below), whose sum is σ = 21182755820544. Its totient is φ = 19036790357200.

The previous prime is 20101120002157. The next prime is 20101120002233. The reversal of 20101120002221 is 12220002110102.

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 20101120002221 - 2⁶ = 20101120002157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20101120002196 and 20101120002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101120002281) 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, 4326540941 + ... + 4326545586.

It is an arithmetic number, because the mean of its divisors is an integer number (2647844477568).

Almost surely, 2^{20101120002221} is an apocalyptic number.

It is an amenable number.

20101120002221 is a deficient number, since it is larger than the sum of its proper divisors (1081635818323).

20101120002221 is a wasteful number, since it uses less digits than its factorization.

20101120002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8653086651.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20101120002221 its reverse (12220002110102), we get a palindrome (32321122112323).

The spelling of 20101120002221 in words is "twenty trillion, one hundred one billion, one hundred twenty million, two thousand, two hundred twenty-one".