212021202354 has 16 divisors (see below), whose sum is σ = 456661051392. Its totient is φ = 65237293008.

The previous prime is 212021202353. The next prime is 212021202403. The reversal of 212021202354 is 453202120212.

It is not an unprimeable number, because it can be changed into a prime (212021202353) 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, 1359110194 + ... + 1359110349.

It is an arithmetic number, because the mean of its divisors is an integer number (28541315712).

Almost surely, 2^212021202354 is an apocalyptic number.

212021202354 is an abundant number, since it is smaller than the sum of its proper divisors (244639849038).

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

212021202354 is a wasteful number, since it uses less digits than its factorization.

212021202354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718220561.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 212021202354 its reverse (453202120212), we get a palindrome (665223322566).

The spelling of 212021202354 in words is "two hundred twelve billion, twenty-one million, two hundred two thousand, three hundred fifty-four".