21003323200122 has 16 divisors (see below), whose sum is σ = 42241320404640. Its totient is φ = 6961995399312.

The previous prime is 21003323200109. The next prime is 21003323200241. The reversal of 21003323200122 is 22100232330012.

It is a happy number.

It is a super-2 number, since 2×21003323200122² (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 7 ways as a sum of consecutive naturals, for example, 9778082353 + ... + 9778084500.

It is an arithmetic number, because the mean of its divisors is an integer number (2640082525290).

Almost surely, 2^{21003323200122} is an apocalyptic number.

21003323200122 is an abundant number, since it is smaller than the sum of its proper divisors (21237997204518).

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

21003323200122 is a wasteful number, since it uses less digits than its factorization.

21003323200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19556167037.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21003323200122 its reverse (22100232330012), we get a palindrome (43103555530134).

The spelling of 21003323200122 in words is "twenty-one trillion, three billion, three hundred twenty-three million, two hundred thousand, one hundred twenty-two".