2001221202202 has 16 divisors (see below), whose sum is σ = 3005910311040. Its totient is φ = 999251467632.

The previous prime is 2001221202103. The next prime is 2001221202313. The reversal of 2001221202202 is 2022021221002.

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, 11224083 + ... + 11400985.

It is an arithmetic number, because the mean of its divisors is an integer number (187869394440).

Almost surely, 2^{2001221202202} is an apocalyptic number.

2001221202202 is a deficient number, since it is larger than the sum of its proper divisors (1004689108838).

2001221202202 is a wasteful number, since it uses less digits than its factorization.

2001221202202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184557.

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

Adding to 2001221202202 its reverse (2022021221002), we get a palindrome (4023242423204).

The spelling of 2001221202202 in words is "two trillion, one billion, two hundred twenty-one million, two hundred two thousand, two hundred two".