212101120022020 has 96 divisors (see below), whose sum is σ = 454626493171200. Its totient is φ = 83102175636480.

The previous prime is 212101120022009. The next prime is 212101120022021. The reversal of 212101120022020 is 20220021101212.

It is a happy number.

It is a super-2 number, since 2×212101120022020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212101120021985 and 212101120022003.

It is not an unprimeable number, because it can be changed into a prime (212101120022021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190752312 + ... + 191861008.

It is an arithmetic number, because the mean of its divisors is an integer number (4735692637200).

Almost surely, 2^{212101120022020} is an apocalyptic number.

212101120022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212101120022020 is an abundant number, since it is smaller than the sum of its proper divisors (242525373149180).

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

212101120022020 is a wasteful number, since it uses less digits than its factorization.

212101120022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109653 (or 1109651 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212101120022020 its reverse (20220021101212), we get a palindrome (232321141123232).

The spelling of 212101120022020 in words is "two hundred twelve trillion, one hundred one billion, one hundred twenty million, twenty-two thousand, twenty".