21220022000001 has 16 divisors (see below), whose sum is σ = 30871983403008. Its totient is φ = 12857912370000.

The previous prime is 21220021999973. The next prime is 21220022000011. The reversal of 21220022000001 is 10000022002212.

It is not a de Polignac number, because 21220022000001 - 2¹³ = 21220021991809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21220022000011) 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, 67516441 + ... + 67830006.

It is an arithmetic number, because the mean of its divisors is an integer number (1929498962688).

Almost surely, 2^{21220022000001} is an apocalyptic number.

It is an amenable number.

21220022000001 is a deficient number, since it is larger than the sum of its proper divisors (9651961403007).

21220022000001 is a wasteful number, since it uses less digits than its factorization.

21220022000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135351212.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 21220022000001 its reverse (10000022002212), we get a palindrome (31220044002213).

The spelling of 21220022000001 in words is "twenty-one trillion, two hundred twenty billion, twenty-two million, one", and thus it is an aban number.