2001200221005 has 32 divisors (see below), whose sum is σ = 3250094707200. Its totient is φ = 1051252437312.

The previous prime is 2001200220973. The next prime is 2001200221043. The reversal of 2001200221005 is 5001220021002.

It is not a de Polignac number, because 2001200221005 - 2⁵ = 2001200220973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8709486 + ... + 8936304.

It is an arithmetic number, because the mean of its divisors is an integer number (101565459600).

Almost surely, 2^{2001200221005} is an apocalyptic number.

It is an amenable number.

2001200221005 is a deficient number, since it is larger than the sum of its proper divisors (1248894486195).

2001200221005 is a wasteful number, since it uses less digits than its factorization.

2001200221005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235673.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 2001200221005 its reverse (5001220021002), we get a palindrome (7002420242007).

The spelling of 2001200221005 in words is "two trillion, one billion, two hundred million, two hundred twenty-one thousand, five".