21011122200102 has 8 divisors (see below), whose sum is σ = 42022244400216. Its totient is φ = 7003707400032.

The previous prime is 21011122200073. The next prime is 21011122200119. The reversal of 21011122200102 is 20100222111012.

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

21011122200102 is an admirable number.

It is a super-3 number, since 3×21011122200102³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

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, 1750926850003 + ... + 1750926850014.

It is an arithmetic number, because the mean of its divisors is an integer number (5252780550027).

Almost surely, 2^{21011122200102} is an apocalyptic number.

21011122200102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21011122200102 is a wasteful number, since it uses less digits than its factorization.

21011122200102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3501853700022.

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

Adding to 21011122200102 its reverse (20100222111012), we get a palindrome (41111344311114).

The spelling of 21011122200102 in words is "twenty-one trillion, eleven billion, one hundred twenty-two million, two hundred thousand, one hundred two".