212111021222030 has 96 divisors (see below), whose sum is σ = 448977487140000. Its totient is φ = 71931659046912.

The previous prime is 212111021221999. The next prime is 212111021222057. The reversal of 212111021222030 is 30222120111212.

It is a super-2 number, since 2×212111021222030² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212111021221993 and 212111021222011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79440146 + ... + 82066794.

It is an arithmetic number, because the mean of its divisors is an integer number (4676848824375).

Almost surely, 2^{212111021222030} is an apocalyptic number.

212111021222030 is an abundant number, since it is smaller than the sum of its proper divisors (236866465917970).

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

212111021222030 is a wasteful number, since it uses less digits than its factorization.

212111021222030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628466 (or 2628459 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 212111021222030 its reverse (30222120111212), we get a palindrome (242333141333242).

The spelling of 212111021222030 in words is "two hundred twelve trillion, one hundred eleven billion, twenty-one million, two hundred twenty-two thousand, thirty".