212002100205 has 32 divisors (see below), whose sum is σ = 387921619200. Its totient is φ = 96850086912.

The previous prime is 212002100161. The next prime is 212002100257. The reversal of 212002100205 is 502001200212.

It is not a de Polignac number, because 212002100205 - 2⁷ = 212002100077 is a prime.

It is a super-2 number, since 2×212002100205² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 521650 + ... + 834339.

It is an arithmetic number, because the mean of its divisors is an integer number (12122550600).

Almost surely, 2^212002100205 is an apocalyptic number.

It is an amenable number.

212002100205 is a deficient number, since it is larger than the sum of its proper divisors (175919518995).

212002100205 is a wasteful number, since it uses less digits than its factorization.

212002100205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357493.

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 212002100205 its reverse (502001200212), we get a palindrome (714003300417).

The spelling of 212002100205 in words is "two hundred twelve billion, two million, one hundred thousand, two hundred five".