21004030222022 has 4 divisors (see below), whose sum is σ = 31506045333036. Its totient is φ = 10502015111010.

The previous prime is 21004030222013. The next prime is 21004030222069. The reversal of 21004030222022 is 22022203040012.

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

It is a super-2 number, since 2×21004030222022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21004030221985 and 21004030222003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5251007555504 + ... + 5251007555507.

It is an arithmetic number, because the mean of its divisors is an integer number (7876511333259).

Almost surely, 2^{21004030222022} is an apocalyptic number.

21004030222022 is a deficient number, since it is larger than the sum of its proper divisors (10502015111014).

21004030222022 is a wasteful number, since it uses less digits than its factorization.

21004030222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10502015111013.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 21004030222022 its reverse (22022203040012), we get a palindrome (43026233262034).

The spelling of 21004030222022 in words is "twenty-one trillion, four billion, thirty million, two hundred twenty-two thousand, twenty-two".