220112211221101 has 4 divisors (see below), whose sum is σ = 233059988351772. Its totient is φ = 207164434090432.

The previous prime is 220112211221051. The next prime is 220112211221131. The reversal of 220112211221101 is 101122112211022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148430605904100 + 71681605317001 = 12183210^2 + 8466499^2 .

It is a cyclic number.

It is not a de Polignac number, because 220112211221101 - 2²¹ = 220112209123949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112211221131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6473888565310 + ... + 6473888565343.

It is an arithmetic number, because the mean of its divisors is an integer number (58264997087943).

Almost surely, 2^{220112211221101} is an apocalyptic number.

It is an amenable number.

220112211221101 is a deficient number, since it is larger than the sum of its proper divisors (12947777130671).

220112211221101 is a wasteful number, since it uses less digits than its factorization.

220112211221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12947777130670.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 220112211221101 its reverse (101122112211022), we get a palindrome (321234323432123).

The spelling of 220112211221101 in words is "two hundred twenty trillion, one hundred twelve billion, two hundred eleven million, two hundred twenty-one thousand, one hundred one".