21101102202022 has 8 divisors (see below), whose sum is σ = 31669405217136. Its totient is φ = 10544633796312.

The previous prime is 21101102201957. The next prime is 21101102202031. The reversal of 21101102202022 is 22020220110112.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 21101102201987 and 21101102202005.

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, 2958647893 + ... + 2958655024.

It is an arithmetic number, because the mean of its divisors is an integer number (3958675652142).

Almost surely, 2^{21101102202022} is an apocalyptic number.

21101102202022 is a deficient number, since it is larger than the sum of its proper divisors (10568303015114).

21101102202022 is a wasteful number, since it uses less digits than its factorization.

21101102202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5917304702.

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

Adding to 21101102202022 its reverse (22020220110112), we get a palindrome (43121322312134).

The spelling of 21101102202022 in words is "twenty-one trillion, one hundred one billion, one hundred two million, two hundred two thousand, twenty-two".