20221021010 has 16 divisors (see below), whose sum is σ = 36400280472. Its totient is φ = 8087865600.

The previous prime is 20221021001. The next prime is 20221021027. The reversal of 20221021010 is 1012012202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19266272809 + 954748201 = 138803^2 + 30899^2 .

It is a super-2 number, since 2×20221021010² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20221020982 and 20221021000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111080 + ... + 229740.

Almost surely, 2^20221021010 is an apocalyptic number.

20221021010 is a deficient number, since it is larger than the sum of its proper divisors (16179259462).

20221021010 is a wasteful number, since it uses less digits than its factorization.

20221021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135709.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20221021010 its reverse (1012012202), we get a palindrome (21233033212).

The spelling of 20221021010 in words is "twenty billion, two hundred twenty-one million, twenty-one thousand, ten".