21111010202022 has 32 divisors (see below), whose sum is σ = 45470198024160. Its totient is φ = 6495648318720.

The previous prime is 21111010202017. The next prime is 21111010202041. The reversal of 21111010202022 is 22020201011112.

It is a junction number, because it is equal to n+sod(n) for n = 21111010201992 and 21111010202010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10727304 + ... + 12541812.

It is an arithmetic number, because the mean of its divisors is an integer number (1420943688255).

Almost surely, 2^{21111010202022} is an apocalyptic number.

21111010202022 is an abundant number, since it is smaller than the sum of its proper divisors (24359187822138).

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

21111010202022 is a wasteful number, since it uses less digits than its factorization.

21111010202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963688.

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

Adding to 21111010202022 its reverse (22020201011112), we get a palindrome (43131211213134).

The spelling of 21111010202022 in words is "twenty-one trillion, one hundred eleven billion, ten million, two hundred two thousand, twenty-two".