2001312302222 has 16 divisors (see below), whose sum is σ = 3098863153152. Its totient is φ = 968359105560.

The previous prime is 2001312302183. The next prime is 2001312302251. The reversal of 2001312302222 is 2222032131002.

It is a happy number.

It is a super-2 number, since 2×2001312302222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2001312302194 and 2001312302203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3486023 + ... + 4019325.

It is an arithmetic number, because the mean of its divisors is an integer number (193678947072).

Almost surely, 2^{2001312302222} is an apocalyptic number.

2001312302222 is a deficient number, since it is larger than the sum of its proper divisors (1097550850930).

2001312302222 is a wasteful number, since it uses less digits than its factorization.

2001312302222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593863.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2001312302222 its reverse (2222032131002), we get a palindrome (4223344433224).

The spelling of 2001312302222 in words is "two trillion, one billion, three hundred twelve million, three hundred two thousand, two hundred twenty-two".