2101220422 has 8 divisors (see below), whose sum is σ = 3602092176. Its totient is φ = 900523032.

The previous prime is 2101220419. The next prime is 2101220479. The reversal of 2101220422 is 2240221012.

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

It is a junction number, because it is equal to n+sod(n) for n = 2101220396 and 2101220405.

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, 75043573 + ... + 75043600.

It is an arithmetic number, because the mean of its divisors is an integer number (450261522).

Almost surely, 2^2101220422 is an apocalyptic number.

2101220422 is a deficient number, since it is larger than the sum of its proper divisors (1500871754).

2101220422 is a wasteful number, since it uses less digits than its factorization.

2101220422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150087182.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2101220422 is about 45839.0709111779. The cubic root of 2101220422 is about 1280.8271878974.

Adding to 2101220422 its reverse (2240221012), we get a palindrome (4341441434).

The spelling of 2101220422 in words is "two billion, one hundred one million, two hundred twenty thousand, four hundred twenty-two".