212201000121020 has 48 divisors (see below), whose sum is σ = 469365628233600. Its totient is φ = 80363342018880.

The previous prime is 212201000121017. The next prime is 212201000121073. The reversal of 212201000121020 is 20121000102212.

It is a super-2 number, since 2×212201000121020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212201000120986 and 212201000121004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171844226 + ... + 173074665.

It is an arithmetic number, because the mean of its divisors is an integer number (9778450588200).

Almost surely, 2^{212201000121020} is an apocalyptic number.

212201000121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212201000121020 is an abundant number, since it is smaller than the sum of its proper divisors (257164628112580).

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

212201000121020 is a wasteful number, since it uses less digits than its factorization.

212201000121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344920538 (or 344920536 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212201000121020 its reverse (20121000102212), we get a palindrome (232322000223232).

The spelling of 212201000121020 in words is "two hundred twelve trillion, two hundred one billion, one hundred twenty-one thousand, twenty".