10212111011111 has 8 divisors (see below), whose sum is σ = 10314767216784. Its totient is φ = 10109485123200.

The previous prime is 10212111010999. The next prime is 10212111011117. The reversal of 10212111011111 is 11111011121201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10212111011111 is a prime.

It is a super-2 number, since 2×10212111011111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212111011117) 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, 6902081 + ... + 8250026.

It is an arithmetic number, because the mean of its divisors is an integer number (1289345902098).

Almost surely, 2^{10212111011111} is an apocalyptic number.

10212111011111 is a deficient number, since it is larger than the sum of its proper divisors (102656205673).

10212111011111 is a wasteful number, since it uses less digits than its factorization.

10212111011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15158881.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 10212111011111 its reverse (11111011121201), we get a palindrome (21323122132312).

The spelling of 10212111011111 in words is "ten trillion, two hundred twelve billion, one hundred eleven million, eleven thousand, one hundred eleven".