12212020221101 has 8 divisors (see below), whose sum is σ = 12930949874304. Its totient is φ = 11493154514880.

The previous prime is 12212020221073. The next prime is 12212020221103. The reversal of 12212020221101 is 10112202021221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12212020221101 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212020221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212020221103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15593285 + ... + 16357706.

It is an arithmetic number, because the mean of its divisors is an integer number (1616368734288).

Almost surely, 2^{12212020221101} is an apocalyptic number.

It is an amenable number.

12212020221101 is a deficient number, since it is larger than the sum of its proper divisors (718929653203).

12212020221101 is a wasteful number, since it uses less digits than its factorization.

12212020221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31973491.

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

Adding to 12212020221101 its reverse (10112202021221), we get a palindrome (22324222242322).

The spelling of 12212020221101 in words is "twelve trillion, two hundred twelve billion, twenty million, two hundred twenty-one thousand, one hundred one".