212102002021101 has 16 divisors (see below), whose sum is σ = 287034973917888. Its totient is φ = 139285349596800.

The previous prime is 212102002021099. The next prime is 212102002021103. The reversal of 212102002021101 is 101120200201212.

It is an interprime number because it is at equal distance from previous prime (212102002021099) and next prime (212102002021103).

It is not a de Polignac number, because 212102002021101 - 2¹ = 212102002021099 is a prime.

It is a super-2 number, since 2×212102002021101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102002021103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15809160 + ... + 25964081.

It is an arithmetic number, because the mean of its divisors is an integer number (17939685869868).

Almost surely, 2^{212102002021101} is an apocalyptic number.

It is an amenable number.

212102002021101 is a deficient number, since it is larger than the sum of its proper divisors (74932971896787).

212102002021101 is a wasteful number, since it uses less digits than its factorization.

212102002021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41798572.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212102002021101 its reverse (101120200201212), we get a palindrome (313222202222313).

The spelling of 212102002021101 in words is "two hundred twelve trillion, one hundred two billion, two million, twenty-one thousand, one hundred one".