211210221001050 has 72 divisors (see below), whose sum is σ = 568240684464960. Its totient is φ = 56244390708000.

The previous prime is 211210221001049. The next prime is 211210221001051. The reversal of 211210221001050 is 50100122012112.

It is an interprime number because it is at equal distance from previous prime (211210221001049) and next prime (211210221001051).

It is a super-2 number, since 2×211210221001050² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (211210221001051) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 326071476 + ... + 326718575.

It is an arithmetic number, because the mean of its divisors is an integer number (7892231728680).

Almost surely, 2^{211210221001050} is an apocalyptic number.

211210221001050 is an abundant number, since it is smaller than the sum of its proper divisors (357030463463910).

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

211210221001050 is a wasteful number, since it uses less digits than its factorization.

211210221001050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652790788 (or 652790780 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 211210221001050 its reverse (50100122012112), we get a palindrome (261310343013162).

The spelling of 211210221001050 in words is "two hundred eleven trillion, two hundred ten billion, two hundred twenty-one million, one thousand, fifty".