21122022011002 has 128 divisors (see below), whose sum is σ = 36792892901376. Its totient is φ = 9006681600000.

The previous prime is 21122022010931. The next prime is 21122022011011. The reversal of 21122022011002 is 20011022022112.

It is a happy number.

It is a super-2 number, since 2×21122022011002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 688873552 + ... + 688904212.

It is an arithmetic number, because the mean of its divisors is an integer number (287444475792).

Almost surely, 2^{21122022011002} is an apocalyptic number.

21122022011002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21122022011002 is a deficient number, since it is larger than the sum of its proper divisors (15670870890374).

21122022011002 is a wasteful number, since it uses less digits than its factorization.

21122022011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31016.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21122022011002 its reverse (20011022022112), we get a palindrome (41133044033114).

It can be divided in two parts, 211220 and 22011002, that added together give a palindrome (22222222).

The spelling of 21122022011002 in words is "twenty-one trillion, one hundred twenty-two billion, twenty-two million, eleven thousand, two".