2101201122210 has 16 divisors (see below), whose sum is σ = 5042882693376. Its totient is φ = 560320299248.

The previous prime is 2101201122179. The next prime is 2101201122217. The reversal of 2101201122210 is 122211021012.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2101201122210.

It is not an unprimeable number, because it can be changed into a prime (2101201122217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35020018674 + ... + 35020018733.

It is an arithmetic number, because the mean of its divisors is an integer number (315180168336).

Almost surely, 2^{2101201122210} is an apocalyptic number.

2101201122210 is an abundant number, since it is smaller than the sum of its proper divisors (2941681571166).

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

2101201122210 is a wasteful number, since it uses less digits than its factorization.

2101201122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70040037417.

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

Adding to 2101201122210 its reverse (122211021012), we get a palindrome (2223412143222).

The spelling of 2101201122210 in words is "two trillion, one hundred one billion, two hundred one million, one hundred twenty-two thousand, two hundred ten".