200220122111021 has 4 divisors (see below), whose sum is σ = 200366588917152. Its totient is φ = 200073655304892.

The previous prime is 200220122110979. The next prime is 200220122111101. The reversal of 200220122111021 is 120111221022002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200220122111021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200220122114021) 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, 73233401015 + ... + 73233403748.

It is an arithmetic number, because the mean of its divisors is an integer number (50091647229288).

Almost surely, 2^{200220122111021} is an apocalyptic number.

It is an amenable number.

200220122111021 is a deficient number, since it is larger than the sum of its proper divisors (146466806131).

200220122111021 is a wasteful number, since it uses less digits than its factorization.

200220122111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146466806130.

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

Adding to 200220122111021 its reverse (120111221022002), we get a palindrome (320331343133023).

The spelling of 200220122111021 in words is "two hundred trillion, two hundred twenty billion, one hundred twenty-two million, one hundred eleven thousand, twenty-one".