20211111021102 has 8 divisors (see below), whose sum is σ = 40422222042216. Its totient is φ = 6737037007032.

The previous prime is 20211111021067. The next prime is 20211111021121. The reversal of 20211111021102 is 20112011111202.

It is a happy number.

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

20211111021102 is an admirable number.

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, 1684259251753 + ... + 1684259251764.

It is an arithmetic number, because the mean of its divisors is an integer number (5052777755277).

Almost surely, 2^{20211111021102} is an apocalyptic number.

20211111021102 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.

20211111021102 is a wasteful number, since it uses less digits than its factorization.

20211111021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368518503522.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20211111021102 its reverse (20112011111202), we get a palindrome (40323122132304).

The spelling of 20211111021102 in words is "twenty trillion, two hundred eleven billion, one hundred eleven million, twenty-one thousand, one hundred two".