2120221102541 has 8 divisors (see below), whose sum is σ = 2128451519040. Its totient is φ = 2111999285088.

The previous prime is 2120221102523. The next prime is 2120221102619. The reversal of 2120221102541 is 1452011220212.

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 2120221102541 - 2²⁶ = 2120153993677 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 (2120221102141) 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, 1655456 + ... + 2642153.

It is an arithmetic number, because the mean of its divisors is an integer number (266056439880).

Almost surely, 2^{2120221102541} is an apocalyptic number.

It is an amenable number.

2120221102541 is a deficient number, since it is larger than the sum of its proper divisors (8230416499).

2120221102541 is a wasteful number, since it uses less digits than its factorization.

2120221102541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4299523.

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 2120221102541 its reverse (1452011220212), we get a palindrome (3572232322753).

The spelling of 2120221102541 in words is "two trillion, one hundred twenty billion, two hundred twenty-one million, one hundred two thousand, five hundred forty-one".