211212210102 has 32 divisors (see below), whose sum is σ = 423848443392. Its totient is φ = 70166994144.

The previous prime is 211212210049. The next prime is 211212210103. The reversal of 211212210102 is 201012212112.

It is a super-2 number, since 2×211212210102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211212210103) 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, 3296173 + ... + 3359639.

It is an arithmetic number, because the mean of its divisors is an integer number (13245263856).

Almost surely, 2^211212210102 is an apocalyptic number.

211212210102 is an abundant number, since it is smaller than the sum of its proper divisors (212636233290).

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

211212210102 is a wasteful number, since it uses less digits than its factorization.

211212210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65332.

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

Adding to 211212210102 its reverse (201012212112), we get a palindrome (412224422214).

The spelling of 211212210102 in words is "two hundred eleven billion, two hundred twelve million, two hundred ten thousand, one hundred two".