21220220001002 has 8 divisors (see below), whose sum is σ = 34723996365312. Its totient is φ = 9645554545900.

The previous prime is 21220220000989. The next prime is 21220220001047. The reversal of 21220220001002 is 20010002202212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482277727274 + ... + 482277727317.

It is an arithmetic number, because the mean of its divisors is an integer number (4340499545664).

Almost surely, 2^{21220220001002} is an apocalyptic number.

21220220001002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21220220001002 is a deficient number, since it is larger than the sum of its proper divisors (13503776364310).

21220220001002 is a wasteful number, since it uses less digits than its factorization.

21220220001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964555454604.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21220220001002 its reverse (20010002202212), we get a palindrome (41230222203214).

The spelling of 21220220001002 in words is "twenty-one trillion, two hundred twenty billion, two hundred twenty million, one thousand, two".