211402230330 has 64 divisors (see below), whose sum is σ = 510562103040. Its totient is φ = 56019073536.

The previous prime is 211402230307. The next prime is 211402230343. The reversal of 211402230330 is 33032204112.

It is a junction number, because it is equal to n+sod(n) for n = 211402230297 and 211402230306.

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, 11164611 + ... + 11183529.

It is an arithmetic number, because the mean of its divisors is an integer number (7977532860).

Almost surely, 2^211402230330 is an apocalyptic number.

211402230330 is an abundant number, since it is smaller than the sum of its proper divisors (299159872710).

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

211402230330 is a wasteful number, since it uses less digits than its factorization.

211402230330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21255.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 211402230330 its reverse (33032204112), we get a palindrome (244434434442).

The spelling of 211402230330 in words is "two hundred eleven billion, four hundred two million, two hundred thirty thousand, three hundred thirty".