220200202210021 has 24 divisors (see below), whose sum is σ = 247121223602400. Its totient is φ = 196005064860000.

The previous prime is 220200202210003. The next prime is 220200202210049. The reversal of 220200202210021 is 120012202002022.

It is not a de Polignac number, because 220200202210021 - 2⁵ = 220200202209989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220200202209977 and 220200202210004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220200202510021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59651706 + ... + 63235483.

It is an arithmetic number, because the mean of its divisors is an integer number (10296717650100).

Almost surely, 2^{220200202210021} is an apocalyptic number.

It is an amenable number.

220200202210021 is a deficient number, since it is larger than the sum of its proper divisors (26921021392379).

220200202210021 is a wasteful number, since it uses less digits than its factorization.

220200202210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122887521 (or 122887510 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220200202210021 its reverse (120012202002022), we get a palindrome (340212404212043).

The spelling of 220200202210021 in words is "two hundred twenty trillion, two hundred billion, two hundred two million, two hundred ten thousand, twenty-one".