20000002211001 has 24 divisors (see below), whose sum is σ = 28932233890560. Its totient is φ = 13313337422400.

The previous prime is 20000002210997. The next prime is 20000002211009. The reversal of 20000002211001 is 10011220000002.

It is not a de Polignac number, because 20000002211001 - 2² = 20000002210997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20000002211009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36928080 + ... + 37465758.

It is an arithmetic number, because the mean of its divisors is an integer number (1205509745440).

Almost surely, 2^{20000002211001} is an apocalyptic number.

It is an amenable number.

20000002211001 is a deficient number, since it is larger than the sum of its proper divisors (8932231679559).

20000002211001 is a wasteful number, since it uses less digits than its factorization.

20000002211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543877 (or 543874 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20000002211001 its reverse (10011220000002), we get a palindrome (30011222211003).

The spelling of 20000002211001 in words is "twenty trillion, two million, two hundred eleven thousand, one".