201220202111210 has 32 divisors (see below), whose sum is σ = 390002066723520. Its totient is φ = 74469530428672.

The previous prime is 201220202111197. The next prime is 201220202111233. The reversal of 201220202111210 is 12111202022102.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 10030907324 + ... + 10030927383.

It is an arithmetic number, because the mean of its divisors is an integer number (12187564585110).

Almost surely, 2^{201220202111210} is an apocalyptic number.

201220202111210 is a deficient number, since it is larger than the sum of its proper divisors (188781864612310).

201220202111210 is a wasteful number, since it uses less digits than its factorization.

201220202111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20061834790.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201220202111210 its reverse (12111202022102), we get a palindrome (213331404133312).

The spelling of 201220202111210 in words is "two hundred one trillion, two hundred twenty billion, two hundred two million, one hundred eleven thousand, two hundred ten".