21020210010022 has 32 divisors (see below), whose sum is σ = 33529628021760. Its totient is φ = 9849034581120.

The previous prime is 21020210010013. The next prime is 21020210010049. The reversal of 21020210010022 is 22001001202012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21020210009984 and 21020210010011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56428197 + ... + 56799487.

It is an arithmetic number, because the mean of its divisors is an integer number (1047800875680).

Almost surely, 2^{21020210010022} is an apocalyptic number.

21020210010022 is a deficient number, since it is larger than the sum of its proper divisors (12509418011738).

21020210010022 is a wasteful number, since it uses less digits than its factorization.

21020210010022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378516.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21020210010022 its reverse (22001001202012), we get a palindrome (43021211212034).

The spelling of 21020210010022 in words is "twenty-one trillion, twenty billion, two hundred ten million, ten thousand, twenty-two".