10231212020 has 12 divisors (see below), whose sum is σ = 21485545284. Its totient is φ = 4092484800.

The previous prime is 10231212001. The next prime is 10231212077. The reversal of 10231212020 is 2021213201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4086533476 + 6144678544 = 63926^2 + 78388^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10231211986 and 10231212004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255780281 + ... + 255780320.

It is an arithmetic number, because the mean of its divisors is an integer number (1790462107).

Almost surely, 2^10231212020 is an apocalyptic number.

10231212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10231212020 is an abundant number, since it is smaller than the sum of its proper divisors (11254333264).

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

10231212020 is a wasteful number, since it uses less digits than its factorization.

10231212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511560610 (or 511560608 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10231212020 its reverse (2021213201), we get a palindrome (12252425221).

The spelling of 10231212020 in words is "ten billion, two hundred thirty-one million, two hundred twelve thousand, twenty".