212030122120 has 32 divisors (see below), whose sum is σ = 477097778520. Its totient is φ = 84806714880.

The previous prime is 212030122111. The next prime is 212030122127. The reversal of 212030122120 is 21221030212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 212017886116 + 12236004 = 460454^2 + 3498^2 .

It is a super-2 number, since 2×212030122120² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212030122094 and 212030122103.

It is not an unprimeable number, because it can be changed into a prime (212030122127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511324 + ... + 827956.

Almost surely, 2^212030122120 is an apocalyptic number.

212030122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212030122120 is an abundant number, since it is smaller than the sum of its proper divisors (265067656400).

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

212030122120 is a wasteful number, since it uses less digits than its factorization.

212030122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333385 (or 333381 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212030122120 its reverse (21221030212), we get a palindrome (233251152332).

The spelling of 212030122120 in words is "two hundred twelve billion, thirty million, one hundred twenty-two thousand, one hundred twenty".