12201010001020 has 24 divisors (see below), whose sum is σ = 25622378531568. Its totient is φ = 4880354947200.

The previous prime is 12201010001017. The next prime is 12201010001039. The reversal of 12201010001020 is 2010001010221.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12201010000988 and 12201010001006.

It is a congruent number.

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, 992026 + ... + 5038465.

It is an arithmetic number, because the mean of its divisors is an integer number (1067599105482).

Almost surely, 2^{12201010001020} is an apocalyptic number.

12201010001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201010001020 is an abundant number, since it is smaller than the sum of its proper divisors (13421368530548).

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

12201010001020 is a wasteful number, since it uses less digits than its factorization.

12201010001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131661 (or 6131659 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12201010001020 its reverse (2010001010221), we get a palindrome (14211011011241).

The spelling of 12201010001020 in words is "twelve trillion, two hundred one billion, ten million, one thousand, twenty".