10212201212111 has 4 divisors (see below), whose sum is σ = 10214865500112. Its totient is φ = 10209536924112.

The previous prime is 10212201212089. The next prime is 10212201212113. The reversal of 10212201212111 is 11121210221201.

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 10212201212111 - 2¹⁴ = 10212201195727 is a prime.

It is a super-2 number, since 2×10212201212111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10212201212111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212201212113) 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, 1332138251 + ... + 1332145916.

It is an arithmetic number, because the mean of its divisors is an integer number (2553716375028).

Almost surely, 2^{10212201212111} is an apocalyptic number.

10212201212111 is a deficient number, since it is larger than the sum of its proper divisors (2664288001).

10212201212111 is an equidigital number, since it uses as much as digits as its factorization.

10212201212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664288000.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10212201212111 its reverse (11121210221201), we get a palindrome (21333411433312).

The spelling of 10212201212111 in words is "ten trillion, two hundred twelve billion, two hundred one million, two hundred twelve thousand, one hundred eleven".