10111212122020 has 12 divisors (see below), whose sum is σ = 21233545456284. Its totient is φ = 4044484848800.

The previous prime is 10111212122003. The next prime is 10111212122021. The reversal of 10111212122020 is 2022121211101.

10111212122020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7126112792484 + 2985099329536 = 2669478^2 + 1727744^2 .

It is a super-2 number, since 2×10111212122020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10111212121985 and 10111212122003.

It is not an unprimeable number, because it can be changed into a prime (10111212122021) 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, 252780303031 + ... + 252780303070.

It is an arithmetic number, because the mean of its divisors is an integer number (1769462121357).

Almost surely, 2^{10111212122020} is an apocalyptic number.

10111212122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10111212122020 is an abundant number, since it is smaller than the sum of its proper divisors (11122333334264).

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

10111212122020 is a wasteful number, since it uses less digits than its factorization.

10111212122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505560606110 (or 505560606108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10111212122020 its reverse (2022121211101), we get a palindrome (12133333333121).

The spelling of 10111212122020 in words is "ten trillion, one hundred eleven billion, two hundred twelve million, one hundred twenty-two thousand, twenty".