10201222020 has 72 divisors (see below), whose sum is σ = 31396180032. Its totient is φ = 2473021760.

The previous prime is 10201222007. The next prime is 10201222021. The reversal of 10201222020 is 2022210201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10201221987 and 10201222005.

It is not an unprimeable number, because it can be changed into a prime (10201222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 695304 + ... + 709823.

It is an arithmetic number, because the mean of its divisors is an integer number (436058056).

Almost surely, 2^10201222020 is an apocalyptic number.

10201222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201222020 is an abundant number, since it is smaller than the sum of its proper divisors (21194958012).

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

10201222020 is a wasteful number, since it uses less digits than its factorization.

10201222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405161 (or 1405148 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 10201222020 its reverse (2022210201), we get a palindrome (12223432221).

It can be divided in two parts, 10201 and 222020, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 10201222020 in words is "ten billion, two hundred one million, two hundred twenty-two thousand, twenty".