10210212121111 has 4 divisors (see below), whose sum is σ = 10210357638000. Its totient is φ = 10210066604224.

The previous prime is 10210212121097. The next prime is 10210212121181. The reversal of 10210212121111 is 11112121201201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10210212121111 - 2³⁵ = 10175852382743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210212121181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72653146 + ... + 72793543.

It is an arithmetic number, because the mean of its divisors is an integer number (2552589409500).

Almost surely, 2^{10210212121111} is an apocalyptic number.

10210212121111 is a deficient number, since it is larger than the sum of its proper divisors (145516889).

10210212121111 is an equidigital number, since it uses as much as digits as its factorization.

10210212121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145516888.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 10210212121111 its reverse (11112121201201), we get a palindrome (21322333322312).

The spelling of 10210212121111 in words is "ten trillion, two hundred ten billion, two hundred twelve million, one hundred twenty-one thousand, one hundred eleven".