21022012101022 has 8 divisors (see below), whose sum is σ = 31533038769816. Its totient is φ = 10510999177752.

The previous prime is 21022012101019. The next prime is 21022012101037. The reversal of 21022012101022 is 22010121022012.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 21022012100987 and 21022012101005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2306653 + ... + 6882199.

It is an arithmetic number, because the mean of its divisors is an integer number (3941629846227).

Almost surely, 2^{21022012101022} is an apocalyptic number.

21022012101022 is a deficient number, since it is larger than the sum of its proper divisors (10511026668794).

21022012101022 is a wasteful number, since it uses less digits than its factorization.

21022012101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6872762.

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

Adding to 21022012101022 its reverse (22010121022012), we get a palindrome (43032133123034).

The spelling of 21022012101022 in words is "twenty-one trillion, twenty-two billion, twelve million, one hundred one thousand, twenty-two".