201220000121210 has 32 divisors (see below), whose sum is σ = 413941811173632. Its totient is φ = 68989126792320.

The previous prime is 201220000121149. The next prime is 201220000121219. The reversal of 201220000121210 is 12121000022102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (201220000121219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3921947 + ... + 20440686.

It is an arithmetic number, because the mean of its divisors is an integer number (12935681599176).

Almost surely, 2^{201220000121210} is an apocalyptic number.

201220000121210 is an abundant number, since it is smaller than the sum of its proper divisors (212721811052422).

201220000121210 is a wasteful number, since it uses less digits than its factorization.

201220000121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24480638.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201220000121210 its reverse (12121000022102), we get a palindrome (213341000143312).

The spelling of 201220000121210 in words is "two hundred one trillion, two hundred twenty billion, one hundred twenty-one thousand, two hundred ten".