22021202202101 has 4 divisors (see below), whose sum is σ = 22072295479104. Its totient is φ = 21970108925100.

The previous prime is 22021202202073. The next prime is 22021202202179. The reversal of 22021202202101 is 10120220212022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021202202101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22021202202101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021202201101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25546637855 + ... + 25546638716.

It is an arithmetic number, because the mean of its divisors is an integer number (5518073869776).

Almost surely, 2^{22021202202101} is an apocalyptic number.

It is an amenable number.

22021202202101 is a deficient number, since it is larger than the sum of its proper divisors (51093277003).

22021202202101 is an equidigital number, since it uses as much as digits as its factorization.

22021202202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51093277002.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22021202202101 its reverse (10120220212022), we get a palindrome (32141422414123).

The spelling of 22021202202101 in words is "twenty-two trillion, twenty-one billion, two hundred two million, two hundred two thousand, one hundred one".