211001011002 has 48 divisors (see below), whose sum is σ = 470907014760. Its totient is φ = 68239065600.

The previous prime is 211001010971. The next prime is 211001011031. The reversal of 211001011002 is 200110100112.

It is a happy number.

211001011002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 110974930641 + 100026080361 = 333129^2 + 316269^2 .

It is a super-2 number, since 2×211001011002² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 656227 + ... + 923382.

Almost surely, 2^211001011002 is an apocalyptic number.

211001011002 is an abundant number, since it is smaller than the sum of its proper divisors (259906003758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211001011002 is a wasteful number, since it uses less digits than its factorization.

211001011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579839 (or 1579836 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 211001011002 its reverse (200110100112), we get a palindrome (411111111114).

The spelling of 211001011002 in words is "two hundred eleven billion, one million, eleven thousand, two".