211002002001 has 96 divisors (see below), whose sum is σ = 374217312000. Its totient is φ = 115096557312.

The previous prime is 211002001981. The next prime is 211002002009. The reversal of 211002002001 is 100200200112.

It is not a de Polignac number, because 211002002001 - 2¹⁰ = 211002000977 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 (211002002009) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 56887335 + ... + 56891043.

It is an arithmetic number, because the mean of its divisors is an integer number (3898097000).

Almost surely, 2^211002002001 is an apocalyptic number.

211002002001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

211002002001 is a deficient number, since it is larger than the sum of its proper divisors (163215309999).

211002002001 is a wasteful number, since it uses less digits than its factorization.

211002002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340 (or 4311 counting only the distinct ones).

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

Adding to 211002002001 its reverse (100200200112), we get a palindrome (311202202113).

The spelling of 211002002001 in words is "two hundred eleven billion, two million, two thousand, one".