2001122111110 has 16 divisors (see below), whose sum is σ = 3661069306032. Its totient is φ = 787326732000.

The previous prime is 2001122111081. The next prime is 2001122111123. The reversal of 2001122111110 is 111112211002.

It is a happy number.

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, 1640263416 + ... + 1640264635.

It is an arithmetic number, because the mean of its divisors is an integer number (228816831627).

Almost surely, 2^{2001122111110} is an apocalyptic number.

2001122111110 is a deficient number, since it is larger than the sum of its proper divisors (1659947194922).

2001122111110 is a wasteful number, since it uses less digits than its factorization.

2001122111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280528119.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2001122111110 its reverse (111112211002), we get a palindrome (2112234322112).

The spelling of 2001122111110 in words is "two trillion, one billion, one hundred twenty-two million, one hundred eleven thousand, one hundred ten".