2001001222210 has 16 divisors (see below), whose sum is σ = 3602385787896. Its totient is φ = 800270802688.

The previous prime is 2001001222193. The next prime is 2001001222229. The reversal of 2001001222210 is 122221001002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1334849797449 + 666151424761 = 1155357^2 + 816181^2 .

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, 16145959 + ... + 16269418.

Almost surely, 2^{2001001222210} is an apocalyptic number.

2001001222210 is a deficient number, since it is larger than the sum of its proper divisors (1601384565686).

2001001222210 is a wasteful number, since it uses less digits than its factorization.

2001001222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32421557.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001001222210 its reverse (122221001002), we get a palindrome (2123222223212).

The spelling of 2001001222210 in words is "two trillion, one billion, one million, two hundred twenty-two thousand, two hundred ten".