212021422602 has 96 divisors (see below), whose sum is σ = 485855979840. Its totient is φ = 61559097600.

The previous prime is 212021422589. The next prime is 212021422607. The reversal of 212021422602 is 206224120212.

It is not an unprimeable number, because it can be changed into a prime (212021422607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2719638 + ... + 2796510.

It is an arithmetic number, because the mean of its divisors is an integer number (5060999790).

Almost surely, 2^212021422602 is an apocalyptic number.

212021422602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 212021422602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242927989920).

212021422602 is an abundant number, since it is smaller than the sum of its proper divisors (273834557238).

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

212021422602 is a wasteful number, since it uses less digits than its factorization.

212021422602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77060 (or 77049 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 212021422602 its reverse (206224120212), we get a palindrome (418245542814).

The spelling of 212021422602 in words is "two hundred twelve billion, twenty-one million, four hundred twenty-two thousand, six hundred two".