22102021010221 has 8 divisors (see below), whose sum is σ = 23072632323840. Its totient is φ = 21132214186512.

The previous prime is 22102021010219. The next prime is 22102021010239. The reversal of 22102021010221 is 12201012020122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22102021010221 - 2¹ = 22102021010219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22102021010195 and 22102021010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102021010261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201066325 + ... + 201176218.

It is an arithmetic number, because the mean of its divisors is an integer number (2884079040480).

Almost surely, 2^{22102021010221} is an apocalyptic number.

It is an amenable number.

22102021010221 is a deficient number, since it is larger than the sum of its proper divisors (970611313619).

22102021010221 is a wasteful number, since it uses less digits than its factorization.

22102021010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402244955.

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

Adding to 22102021010221 its reverse (12201012020122), we get a palindrome (34303033030343).

The spelling of 22102021010221 in words is "twenty-two trillion, one hundred two billion, twenty-one million, ten thousand, two hundred twenty-one".