21770031430222 has 8 divisors (see below), whose sum is σ = 32655099457296. Its totient is φ = 10884998277792.

The previous prime is 21770031430187. The next prime is 21770031430243. The reversal of 21770031430222 is 22203413007712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7097803 + ... + 9691174.

It is an arithmetic number, because the mean of its divisors is an integer number (4081887432162).

Almost surely, 2^{21770031430222} is an apocalyptic number.

21770031430222 is a deficient number, since it is larger than the sum of its proper divisors (10885068027074).

21770031430222 is a wasteful number, since it uses less digits than its factorization.

21770031430222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17437322.

The product of its (nonzero) digits is 28224, while the sum is 34.

Adding to 21770031430222 its reverse (22203413007712), we get a palindrome (43973444437934).

The spelling of 21770031430222 in words is "twenty-one trillion, seven hundred seventy billion, thirty-one million, four hundred thirty thousand, two hundred twenty-two".