2001022012210 has 32 divisors (see below), whose sum is σ = 3961434097152. Its totient is φ = 723118918080.

The previous prime is 2001022012181. The next prime is 2001022012211. The reversal of 2001022012210 is 122102201002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (2001022012211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163743646 + ... + 163755865.

It is an arithmetic number, because the mean of its divisors is an integer number (123794815536).

Almost surely, 2^{2001022012210} is an apocalyptic number.

2001022012210 is a deficient number, since it is larger than the sum of its proper divisors (1960412084942).

2001022012210 is a wasteful number, since it uses less digits than its factorization.

2001022012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327499578.

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

Adding to 2001022012210 its reverse (122102201002), we get a palindrome (2123124213212).

The spelling of 2001022012210 in words is "two trillion, one billion, twenty-two million, twelve thousand, two hundred ten".