20012220221210 has 32 divisors (see below), whose sum is σ = 41169506204160. Its totient is φ = 6861080927232.

The previous prime is 20012220221197. The next prime is 20012220221251. The reversal of 20012220221210 is 1212202221002.

It is a happy number.

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, 3317474 + ... + 7143533.

It is an arithmetic number, because the mean of its divisors is an integer number (1286547068880).

Almost surely, 2^{20012220221210} is an apocalyptic number.

20012220221210 is an abundant number, since it is smaller than the sum of its proper divisors (21157285982950).

20012220221210 is a wasteful number, since it uses less digits than its factorization.

20012220221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10488350.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20012220221210 its reverse (1212202221002), we get a palindrome (21224422442212).

The spelling of 20012220221210 in words is "twenty trillion, twelve billion, two hundred twenty million, two hundred twenty-one thousand, two hundred ten".