20012200221210 has 32 divisors (see below), whose sum is σ = 48036439946880. Its totient is φ = 5335791235008.

The previous prime is 20012200221191. The next prime is 20012200221217. The reversal of 20012200221210 is 1212200221002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20012200221210.

It is not an unprimeable number, because it can be changed into a prime (20012200221217) 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, 49513542 + ... + 49916081.

It is an arithmetic number, because the mean of its divisors is an integer number (1501138748340).

Almost surely, 2^{20012200221210} is an apocalyptic number.

20012200221210 is an abundant number, since it is smaller than the sum of its proper divisors (28024239725670).

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

20012200221210 is a wasteful number, since it uses less digits than its factorization.

20012200221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99436342.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20012200221210 its reverse (1212200221002), we get a palindrome (21224400442212).

The spelling of 20012200221210 in words is "twenty trillion, twelve billion, two hundred million, two hundred twenty-one thousand, two hundred ten".