21022211020000 has 60 divisors (see below), whose sum is σ = 51717792490056. Its totient is φ = 8408884400000.

The previous prime is 21022211019989. The next prime is 21022211020049. The reversal of 21022211020000 is 2011222012.

It is a happy number.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 525535276 + ... + 525575275.

Almost surely, 2^{21022211020000} is an apocalyptic number.

21022211020000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21022211020000 is an abundant number, since it is smaller than the sum of its proper divisors (30695581470056).

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

21022211020000 is an equidigital number, since it uses as much as digits as its factorization.

21022211020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051110581 (or 1051110558 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21022211020000 its reverse (2011222012), we get a palindrome (21024222242012).

The spelling of 21022211020000 in words is "twenty-one trillion, twenty-two billion, two hundred eleven million, twenty thousand".