220211400342021 has 16 divisors (see below), whose sum is σ = 320752981693440. Its totient is φ = 133275833799920.

The previous prime is 220211400341963. The next prime is 220211400342049. The reversal of 220211400342021 is 120243004112022.

220211400342021 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 220211400342021 - 2⁷ = 220211400341893 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220211400341982 and 220211400342000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211400342061) 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, 4640499735 + ... + 4640547188.

It is an arithmetic number, because the mean of its divisors is an integer number (20047061355840).

Almost surely, 2^{220211400342021} is an apocalyptic number.

It is an amenable number.

220211400342021 is a deficient number, since it is larger than the sum of its proper divisors (100541581351419).

220211400342021 is a wasteful number, since it uses less digits than its factorization.

220211400342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9281047656.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 220211400342021 its reverse (120243004112022), we get a palindrome (340454404454043).

The spelling of 220211400342021 in words is "two hundred twenty trillion, two hundred eleven billion, four hundred million, three hundred forty-two thousand, twenty-one".