2031021121222 has 16 divisors (see below), whose sum is σ = 3144869062272. Its totient is φ = 982732728960.

The previous prime is 2031021121219. The next prime is 2031021121223. The reversal of 2031021121222 is 2221211201302.

It is a self number, because there is not a number n which added to its sum of digits gives 2031021121222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031021121223) 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, 3133288 + ... + 3725524.

It is an arithmetic number, because the mean of its divisors is an integer number (196554316392).

Almost surely, 2^{2031021121222} is an apocalyptic number.

2031021121222 is a deficient number, since it is larger than the sum of its proper divisors (1113847941050).

2031021121222 is a wasteful number, since it uses less digits than its factorization.

2031021121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647583.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2031021121222 its reverse (2221211201302), we get a palindrome (4252232322524).

The spelling of 2031021121222 in words is "two trillion, thirty-one billion, twenty-one million, one hundred twenty-one thousand, two hundred twenty-two".