212021031030 has 32 divisors (see below), whose sum is σ = 513353584224. Its totient is φ = 56038596096.

The previous prime is 212021031017. The next prime is 212021031037. The reversal of 212021031030 is 30130120212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021031037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31268149 + ... + 31274928.

It is an arithmetic number, because the mean of its divisors is an integer number (16042299507).

Almost surely, 2^212021031030 is an apocalyptic number.

212021031030 is an abundant number, since it is smaller than the sum of its proper divisors (301332553194).

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

212021031030 is a wasteful number, since it uses less digits than its factorization.

212021031030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62543200.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 212021031030 its reverse (30130120212), we get a palindrome (242151151242).

The spelling of 212021031030 in words is "two hundred twelve billion, twenty-one million, thirty-one thousand, thirty".