2001021202222 has 8 divisors (see below), whose sum is σ = 3430322060976. Its totient is φ = 857580515232.

The previous prime is 2001021202183. The next prime is 2001021202237. The reversal of 2001021202222 is 2222021201002.

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 = 2001021202196 and 2001021202205.

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, 71465042923 + ... + 71465042950.

It is an arithmetic number, because the mean of its divisors is an integer number (428790257622).

Almost surely, 2^{2001021202222} is an apocalyptic number.

2001021202222 is a deficient number, since it is larger than the sum of its proper divisors (1429300858754).

2001021202222 is a wasteful number, since it uses less digits than its factorization.

2001021202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142930085882.

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

Adding to 2001021202222 its reverse (2222021201002), we get a palindrome (4223042403224).

The spelling of 2001021202222 in words is "two trillion, one billion, twenty-one million, two hundred two thousand, two hundred twenty-two".