21210001102022 has 4 divisors (see below), whose sum is σ = 31815001653036. Its totient is φ = 10605000551010.

The previous prime is 21210001102021. The next prime is 21210001102093. The reversal of 21210001102022 is 22020110001212.

It is a semiprime because it is the product of two primes.

It is a super-5 number, since 5×21210001102022⁵ (a number of 68 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21210001101988 and 21210001102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210001102021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5302500275504 + ... + 5302500275507.

It is an arithmetic number, because the mean of its divisors is an integer number (7953750413259).

Almost surely, 2^{21210001102022} is an apocalyptic number.

21210001102022 is a deficient number, since it is larger than the sum of its proper divisors (10605000551014).

21210001102022 is a wasteful number, since it uses less digits than its factorization.

21210001102022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10605000551013.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21210001102022 its reverse (22020110001212), we get a palindrome (43230111103234).

The spelling of 21210001102022 in words is "twenty-one trillion, two hundred ten billion, one million, one hundred two thousand, twenty-two".