210320055440121 has 32 divisors (see below), whose sum is σ = 320874948513792. Its totient is φ = 121292935695360.

The previous prime is 210320055440111. The next prime is 210320055440141. The reversal of 210320055440121 is 121044550023012.

It is not a de Polignac number, because 210320055440121 - 2⁶ = 210320055440057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210320055440111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 717733105 + ... + 718026078.

It is an arithmetic number, because the mean of its divisors is an integer number (10027342141056).

Almost surely, 2^{210320055440121} is an apocalyptic number.

It is an amenable number.

210320055440121 is a deficient number, since it is larger than the sum of its proper divisors (110554893073671).

210320055440121 is a wasteful number, since it uses less digits than its factorization.

210320055440121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435759413.

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 210320055440121 in words is "two hundred ten trillion, three hundred twenty billion, fifty-five million, four hundred forty thousand, one hundred twenty-one".