211210022102101 has 4 divisors (see below), whose sum is σ = 230410933202304. Its totient is φ = 192009111001900.

The previous prime is 211210022102099. The next prime is 211210022102119. The reversal of 211210022102101 is 101201220012112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211210022102101 - 2¹ = 211210022102099 is a prime.

It is a super-2 number, since 2×211210022102101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210022102501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9600455550085 + ... + 9600455550106.

It is an arithmetic number, because the mean of its divisors is an integer number (57602733300576).

Almost surely, 2^{211210022102101} is an apocalyptic number.

It is an amenable number.

211210022102101 is a deficient number, since it is larger than the sum of its proper divisors (19200911100203).

211210022102101 is a wasteful number, since it uses less digits than its factorization.

211210022102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19200911100202.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211210022102101 its reverse (101201220012112), we get a palindrome (312411242114213).

The spelling of 211210022102101 in words is "two hundred eleven trillion, two hundred ten billion, twenty-two million, one hundred two thousand, one hundred one".