2211221102010 has 96 divisors (see below), whose sum is σ = 5721608905920. Its totient is φ = 546689814528.

The previous prime is 2211221101939. The next prime is 2211221102011. The reversal of 2211221102010 is 102011221122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (2211221102011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1322415 + ... + 2484194.

It is an arithmetic number, because the mean of its divisors is an integer number (59600092770).

Almost surely, 2^{2211221102010} is an apocalyptic number.

2211221102010 is an abundant number, since it is smaller than the sum of its proper divisors (3510387803910).

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

2211221102010 is a wasteful number, since it uses less digits than its factorization.

2211221102010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806720 (or 3806703 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2211221102010 its reverse (102011221122), we get a palindrome (2313232323132).

The spelling of 2211221102010 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, one hundred two thousand, ten".