20211010220122 has 24 divisors (see below), whose sum is σ = 30917583460764. Its totient is φ = 9908974168704.

The previous prime is 20211010220077. The next prime is 20211010220197. The reversal of 20211010220122 is 22102201011202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 11451192049521 + 8759818170601 = 3383961^2 + 2959699^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20211010220096 and 20211010220105.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8448798 + ... + 10573750.

Almost surely, 2^{20211010220122} is an apocalyptic number.

20211010220122 is a deficient number, since it is larger than the sum of its proper divisors (10706573240642).

20211010220122 is a wasteful number, since it uses less digits than its factorization.

20211010220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126754 (or 2126701 counting only the distinct ones).

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

Adding to 20211010220122 its reverse (22102201011202), we get a palindrome (42313211231324).

The spelling of 20211010220122 in words is "twenty trillion, two hundred eleven billion, ten million, two hundred twenty thousand, one hundred twenty-two".