2001022201211 has 32 divisors (see below), whose sum is σ = 2297341440000. Its totient is φ = 1725967452160.

The previous prime is 2001022201147. The next prime is 2001022201229. The reversal of 2001022201211 is 1121022201002.

It is not a de Polignac number, because 2001022201211 - 2⁶ = 2001022201147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001022201271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54167195 + ... + 54204123.

It is an arithmetic number, because the mean of its divisors is an integer number (71791920000).

Almost surely, 2^{2001022201211} is an apocalyptic number.

2001022201211 is a deficient number, since it is larger than the sum of its proper divisors (296319238789).

2001022201211 is a wasteful number, since it uses less digits than its factorization.

2001022201211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39907.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001022201211 its reverse (1121022201002), we get a palindrome (3122044402213).

The spelling of 2001022201211 in words is "two trillion, one billion, twenty-two million, two hundred one thousand, two hundred eleven".