2001011111210 has 16 divisors (see below), whose sum is σ = 3627732376800. Its totient is φ = 794646138576.

The previous prime is 2001011111129. The next prime is 2001011111243. The reversal of 2001011111210 is 121111101002.

It is a junction number, because it is equal to n+sod(n) for n = 2001011111191 and 2001011111200.

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, 719786780 + ... + 719789559.

It is an arithmetic number, because the mean of its divisors is an integer number (226733273550).

Almost surely, 2^{2001011111210} is an apocalyptic number.

2001011111210 is a deficient number, since it is larger than the sum of its proper divisors (1626721265590).

2001011111210 is a wasteful number, since it uses less digits than its factorization.

2001011111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439576485.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2001011111210 its reverse (121111101002), we get a palindrome (2122122212212).

The spelling of 2001011111210 in words is "two trillion, one billion, eleven million, one hundred eleven thousand, two hundred ten".