211421030202 has 16 divisors (see below), whose sum is σ = 469824511680. Its totient is φ = 70473676716.

The previous prime is 211421030201. The next prime is 211421030207. The reversal of 211421030202 is 202030124112.

It is a happy number.

211421030202 is a `hidden beast` number, since 2 + 11 + 421 + 0 + 30 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (211421030201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1957602078 + ... + 1957602185.

It is an arithmetic number, because the mean of its divisors is an integer number (29364031980).

Almost surely, 2^211421030202 is an apocalyptic number.

211421030202 is an abundant number, since it is smaller than the sum of its proper divisors (258403481478).

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

211421030202 is a wasteful number, since it uses less digits than its factorization.

211421030202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3915204274 (or 3915204268 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 211421030202 its reverse (202030124112), we get a palindrome (413451154314).

It can be divided in two parts, 2114210 and 30202, that added together give a palindrome (2144412).

The spelling of 211421030202 in words is "two hundred eleven billion, four hundred twenty-one million, thirty thousand, two hundred two".