20213022210 has 16 divisors (see below), whose sum is σ = 48511253376. Its totient is φ = 5390139248.

The previous prime is 20213022199. The next prime is 20213022227. The reversal of 20213022210 is 1222031202.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20213022210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336883674 + ... + 336883733.

It is an arithmetic number, because the mean of its divisors is an integer number (3031953336).

Almost surely, 2^20213022210 is an apocalyptic number.

20213022210 is an abundant number, since it is smaller than the sum of its proper divisors (28298231166).

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

20213022210 is a wasteful number, since it uses less digits than its factorization.

20213022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673767417.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20213022210 its reverse (1222031202), we get a palindrome (21435053412).

The spelling of 20213022210 in words is "twenty billion, two hundred thirteen million, twenty-two thousand, two hundred ten".