201021211220330 has 32 divisors (see below), whose sum is σ = 362807077014144. Its totient is φ = 80193394138176.

The previous prime is 201021211220311. The next prime is 201021211220369. The reversal of 201021211220330 is 33022112120102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6443804 + ... + 21060983.

It is an arithmetic number, because the mean of its divisors is an integer number (11337721156692).

Almost surely, 2^{201021211220330} is an apocalyptic number.

201021211220330 is a deficient number, since it is larger than the sum of its proper divisors (161785865793814).

201021211220330 is a wasteful number, since it uses less digits than its factorization.

201021211220330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27506750.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 201021211220330 its reverse (33022112120102), we get a palindrome (234043323340432).

The spelling of 201021211220330 in words is "two hundred one trillion, twenty-one billion, two hundred eleven million, two hundred twenty thousand, three hundred thirty".