22020214021 has 16 divisors (see below), whose sum is σ = 24081443568. Its totient is φ = 20013696000.

The previous prime is 22020214001. The next prime is 22020214033. The reversal of 22020214021 is 12041202022.

22020214021 = 104² + 105² + ... + 4042².

It can be written as a sum of positive squares in 8 ways, for example, as 159112996 + 21861101025 = 12614^2 + 147855^2 .

It is a cyclic number.

It is not a de Polignac number, because 22020214021 - 2¹³ = 22020205829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22020213986 and 22020214004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020214001) 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, 191325 + ... + 283981.

It is an arithmetic number, because the mean of its divisors is an integer number (1505090223).

Almost surely, 2^22020214021 is an apocalyptic number.

It is an amenable number.

22020214021 is a deficient number, since it is larger than the sum of its proper divisors (2061229547).

22020214021 is a wasteful number, since it uses less digits than its factorization.

22020214021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92952.

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

Adding to 22020214021 its reverse (12041202022), we get a palindrome (34061416043).

The spelling of 22020214021 in words is "twenty-two billion, twenty million, two hundred fourteen thousand, twenty-one".