10555212020 has 12 divisors (see below), whose sum is σ = 22165945284. Its totient is φ = 4222084800.

The previous prime is 10555211999. The next prime is 10555212023. The reversal of 10555212020 is 2021255501.

It can be written as a sum of positive squares in 2 ways, for example, as 3207636496 + 7347575524 = 56636^2 + 85718^2 .

It is a super-2 number, since 2×10555212020² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10555212023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263880281 + ... + 263880320.

It is an arithmetic number, because the mean of its divisors is an integer number (1847162107).

Almost surely, 2^10555212020 is an apocalyptic number.

10555212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10555212020 is an abundant number, since it is smaller than the sum of its proper divisors (11610733264).

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

10555212020 is a wasteful number, since it uses less digits than its factorization.

10555212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527760610 (or 527760608 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 10555212020 its reverse (2021255501), we get a palindrome (12576467521).

The spelling of 10555212020 in words is "ten billion, five hundred fifty-five million, two hundred twelve thousand, twenty".