2001222011010 has 128 divisors (see below), whose sum is σ = 4916330496000. Its totient is φ = 521229945600.

The previous prime is 2001222010999. The next prime is 2001222011021. The reversal of 2001222011010 is 101102221002.

It is an interprime number because it is at equal distance from previous prime (2001222010999) and next prime (2001222011021).

It is a super-2 number, since 2×2001222011010² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 105035985 + ... + 105055035.

It is an arithmetic number, because the mean of its divisors is an integer number (38408832000).

Almost surely, 2^{2001222011010} is an apocalyptic number.

2001222011010 is an abundant number, since it is smaller than the sum of its proper divisors (2915108484990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001222011010 is a wasteful number, since it uses less digits than its factorization.

2001222011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19616.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2001222011010 its reverse (101102221002), we get a palindrome (2102324232012).

The spelling of 2001222011010 in words is "two trillion, one billion, two hundred twenty-two million, eleven thousand, ten".