2011221220202 has 8 divisors (see below), whose sum is σ = 3039861081312. Its totient is φ = 997934193100.

The previous prime is 2011221220199. The next prime is 2011221220207. The reversal of 2011221220202 is 2020221221102.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (2011221220207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3838208174 + ... + 3838208697.

It is an arithmetic number, because the mean of its divisors is an integer number (379982635164).

Almost surely, 2^{2011221220202} is an apocalyptic number.

2011221220202 is a deficient number, since it is larger than the sum of its proper divisors (1028639861110).

2011221220202 is a wasteful number, since it uses less digits than its factorization.

2011221220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7676417004.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2011221220202 its reverse (2020221221102), we get a palindrome (4031442441304).

The spelling of 2011221220202 in words is "two trillion, eleven billion, two hundred twenty-one million, two hundred twenty thousand, two hundred two".