2211101220204 has 18 divisors (see below), whose sum is σ = 5589172528940. Its totient is φ = 737033740056.

The previous prime is 2211101220149. The next prime is 2211101220233. The reversal of 2211101220204 is 4020221011122.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30709739134 + ... + 30709739205.

Almost surely, 2^{2211101220204} is an apocalyptic number.

It is an amenable number.

2211101220204 is an abundant number, since it is smaller than the sum of its proper divisors (3378071308736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211101220204 is a wasteful number, since it uses less digits than its factorization.

2211101220204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61419478349 (or 61419478344 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2211101220204 its reverse (4020221011122), we get a palindrome (6231322231326).

The spelling of 2211101220204 in words is "two trillion, two hundred eleven billion, one hundred one million, two hundred twenty thousand, two hundred four".