22022010002021 has 2 divisors, whose sum is σ = 22022010002022. Its totient is φ = 22022010002020.

The previous prime is 22022010002017. The next prime is 22022010002029. The reversal of 22022010002021 is 12020001022022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15984723648100 + 6037286353921 = 3998090^2 + 2457089^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022010002021 - 2² = 22022010002017 is a prime.

It is a super-2 number, since 2×22022010002021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22022010001987 and 22022010002005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22022010002029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11011005001010 + 11011005001011.

It is an arithmetic number, because the mean of its divisors is an integer number (11011005001011).

Almost surely, 2^{22022010002021} is an apocalyptic number.

It is an amenable number.

22022010002021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22022010002021 is an equidigital number, since it uses as much as digits as its factorization.

22022010002021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22022010002021 its reverse (12020001022022), we get a palindrome (34042011024043).

The spelling of 22022010002021 in words is "twenty-two trillion, twenty-two billion, ten million, two thousand, twenty-one".