211001002122 has 16 divisors (see below), whose sum is σ = 440349917760. Its totient is φ = 67275681792.

The previous prime is 211001002087. The next prime is 211001002129. The reversal of 211001002122 is 221200100112.

It is a junction number, because it is equal to n+sod(n) for n = 211001002098 and 211001002107.

It is not an unprimeable number, because it can be changed into a prime (211001002129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764496247 + ... + 764496522.

It is an arithmetic number, because the mean of its divisors is an integer number (27521869860).

Almost surely, 2^211001002122 is an apocalyptic number.

211001002122 is an abundant number, since it is smaller than the sum of its proper divisors (229348915638).

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

211001002122 is a wasteful number, since it uses less digits than its factorization.

211001002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528992797.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 211001002122 its reverse (221200100112), we get a palindrome (432201102234).

The spelling of 211001002122 in words is "two hundred eleven billion, one million, two thousand, one hundred twenty-two".