2001222220210 has 32 divisors (see below), whose sum is σ = 3814168372992. Its totient is φ = 753386638080.

The previous prime is 2001222220189. The next prime is 2001222220211. The reversal of 2001222220210 is 120222221002.

It is not an unprimeable number, because it can be changed into a prime (2001222220211) 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, 13135129 + ... + 13286611.

It is an arithmetic number, because the mean of its divisors is an integer number (119192761656).

Almost surely, 2^{2001222220210} is an apocalyptic number.

2001222220210 is a deficient number, since it is larger than the sum of its proper divisors (1812946152782).

2001222220210 is a wasteful number, since it uses less digits than its factorization.

2001222220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229218.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2001222220210 its reverse (120222221002), we get a palindrome (2121444441212).

The spelling of 2001222220210 in words is "two trillion, one billion, two hundred twenty-two million, two hundred twenty thousand, two hundred ten".