212021203030 has 32 divisors (see below), whose sum is σ = 469708513344. Its totient is φ = 67101215616.

The previous prime is 212021203003. The next prime is 212021203039. The reversal of 212021203030 is 30302120212.

212021203030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212021202995 and 212021203013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021203039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116494257 + ... + 116496076.

It is an arithmetic number, because the mean of its divisors is an integer number (14678391042).

Almost surely, 2^212021203030 is an apocalyptic number.

212021203030 is an abundant number, since it is smaller than the sum of its proper divisors (257687310314).

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

212021203030 is a wasteful number, since it uses less digits than its factorization.

212021203030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232990360.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 212021203030 its reverse (30302120212), we get a palindrome (242323323242).

The spelling of 212021203030 in words is "two hundred twelve billion, twenty-one million, two hundred three thousand, thirty".