21022201111002 has 64 divisors (see below), whose sum is σ = 51858721689600. Its totient is φ = 5532341943744.

The previous prime is 21022201110991. The next prime is 21022201111049. The reversal of 21022201111002 is 20011110222012.

It is a super-3 number, since 3×21022201111002³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41326252 + ... + 41831847.

It is an arithmetic number, because the mean of its divisors is an integer number (810292526400).

Almost surely, 2^{21022201111002} is an apocalyptic number.

21022201111002 is an abundant number, since it is smaller than the sum of its proper divisors (30836520578598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21022201111002 is a wasteful number, since it uses less digits than its factorization.

21022201111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83158587.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21022201111002 its reverse (20011110222012), we get a palindrome (41033311333014).

The spelling of 21022201111002 in words is "twenty-one trillion, twenty-two billion, two hundred one million, one hundred eleven thousand, two".