2331122045021 has 32 divisors (see below), whose sum is σ = 2931142874880. Its totient is φ = 1801019059200.

The previous prime is 2331122044969. The next prime is 2331122045029. The reversal of 2331122045021 is 1205402211332.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331122045021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331122045029) 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, 3975275 + ... + 4523831.

It is an arithmetic number, because the mean of its divisors is an integer number (91598214840).

Almost surely, 2^{2331122045021} is an apocalyptic number.

It is an amenable number.

2331122045021 is a deficient number, since it is larger than the sum of its proper divisors (600020829859).

2331122045021 is a wasteful number, since it uses less digits than its factorization.

2331122045021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549045.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 2331122045021 its reverse (1205402211332), we get a palindrome (3536524256353).

The spelling of 2331122045021 in words is "two trillion, three hundred thirty-one billion, one hundred twenty-two million, forty-five thousand, twenty-one".