211222202102 has 4 divisors (see below), whose sum is σ = 316833303156. Its totient is φ = 105611101050.

The previous prime is 211222202101. The next prime is 211222202131. The reversal of 211222202102 is 201202222112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×211222202102² (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 (211222202101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52805550524 + ... + 52805550527.

It is an arithmetic number, because the mean of its divisors is an integer number (79208325789).

Almost surely, 2^211222202102 is an apocalyptic number.

211222202102 is a deficient number, since it is larger than the sum of its proper divisors (105611101054).

211222202102 is a wasteful number, since it uses less digits than its factorization.

211222202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105611101053.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 211222202102 its reverse (201202222112), we get a palindrome (412424424214).

The spelling of 211222202102 in words is "two hundred eleven billion, two hundred twenty-two million, two hundred two thousand, one hundred two".