10211121111210 has 16 divisors (see below), whose sum is σ = 24506690666976. Its totient is φ = 2722965629648.

The previous prime is 10211121111209. The next prime is 10211121111311. The reversal of 10211121111210 is 1211112111201.

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 10211121111210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170185351824 + ... + 170185351883.

It is an arithmetic number, because the mean of its divisors is an integer number (1531668166686).

Almost surely, 2^{10211121111210} is an apocalyptic number.

10211121111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10211121111210 is an abundant number, since it is smaller than the sum of its proper divisors (14295569555766).

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

10211121111210 is a wasteful number, since it uses less digits than its factorization.

10211121111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340370703717.

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

Adding to 10211121111210 its reverse (1211112111201), we get a palindrome (11422233222411).

Subtracting from 10211121111210 its reverse (1211112111201), we obtain a palindrome (9000009000009).

The spelling of 10211121111210 in words is "ten trillion, two hundred eleven billion, one hundred twenty-one million, one hundred eleven thousand, two hundred ten".