2031122222121 has 8 divisors (see below), whose sum is σ = 2708247586464. Its totient is φ = 1354039169600.

The previous prime is 2031122222119. The next prime is 2031122222183. The reversal of 2031122222121 is 1212222211302.

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 2031122222121 - 2¹ = 2031122222119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2031122222221) 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, 10465776 + ... + 10658081.

It is an arithmetic number, because the mean of its divisors is an integer number (338530948308).

Almost surely, 2^{2031122222121} is an apocalyptic number.

It is an amenable number.

2031122222121 is a deficient number, since it is larger than the sum of its proper divisors (677125364343).

2031122222121 is a wasteful number, since it uses less digits than its factorization.

2031122222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21155911.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2031122222121 its reverse (1212222211302), we get a palindrome (3243344433423).

The spelling of 2031122222121 in words is "two trillion, thirty-one billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-one".