20220021122210 has 48 divisors (see below), whose sum is σ = 45595036654776. Its totient is φ = 6399303386112.

The previous prime is 20220021122141. The next prime is 20220021122219. The reversal of 20220021122210 is 1222112002202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10153278789241 + 10066742332969 = 3186421^2 + 3172813^2 .

It is not an unprimeable number, because it can be changed into a prime (20220021122219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1587122447 + ... + 1587135186.

Almost surely, 2^{20220021122210} is an apocalyptic number.

20220021122210 is an abundant number, since it is smaller than the sum of its proper divisors (25375015532566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20220021122210 is a wasteful number, since it uses less digits than its factorization.

20220021122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174257667 (or 3174257660 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20220021122210 its reverse (1222112002202), we get a palindrome (21442133124412).

The spelling of 20220021122210 in words is "twenty trillion, two hundred twenty billion, twenty-one million, one hundred twenty-two thousand, two hundred ten".