101201211111210 has 128 divisors (see below), whose sum is σ = 284221386307584. Its totient is φ = 22578998158080.

The previous prime is 101201211111191. The next prime is 101201211111281. The reversal of 101201211111210 is 12111112102101.

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 101201211111210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10164832 + ... + 17485028.

It is an arithmetic number, because the mean of its divisors is an integer number (2220479580528).

Almost surely, 2^{101201211111210} is an apocalyptic number.

101201211111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 101201211111210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142110693153792).

101201211111210 is an abundant number, since it is smaller than the sum of its proper divisors (183020175196374).

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

101201211111210 is a wasteful number, since it uses less digits than its factorization.

101201211111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7321788.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 101201211111210 its reverse (12111112102101), we get a palindrome (113312323213311).

The spelling of 101201211111210 in words is "one hundred one trillion, two hundred one billion, two hundred eleven million, one hundred eleven thousand, two hundred ten".