20215331322 has 32 divisors (see below), whose sum is σ = 42862861824. Its totient is φ = 6344827200.

The previous prime is 20215331317. The next prime is 20215331341. The reversal of 20215331322 is 22313351202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20215331292 and 20215331301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1461829 + ... + 1475592.

It is an arithmetic number, because the mean of its divisors is an integer number (1339464432).

Almost surely, 2^20215331322 is an apocalyptic number.

20215331322 is an abundant number, since it is smaller than the sum of its proper divisors (22647530502).

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

20215331322 is a wasteful number, since it uses less digits than its factorization.

20215331322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2937494.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 20215331322 its reverse (22313351202), we get a palindrome (42528682524).

The spelling of 20215331322 in words is "twenty billion, two hundred fifteen million, three hundred thirty-one thousand, three hundred twenty-two".