10111212111122 has 16 divisors (see below), whose sum is σ = 15189168185880. Its totient is φ = 5048156950272.

The previous prime is 10111212111097. The next prime is 10111212111137. The reversal of 10111212111122 is 22111121211101.

It can be written as a sum of positive squares in 4 ways, for example, as 5575969099801 + 4535243011321 = 2361349^2 + 2129611^2 .

It is a super-2 number, since 2×10111212111122² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10111212111122.

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, 23113658 + ... + 23547050.

Almost surely, 2^{10111212111122} is an apocalyptic number.

10111212111122 is a deficient number, since it is larger than the sum of its proper divisors (5077956074758).

10111212111122 is a wasteful number, since it uses less digits than its factorization.

10111212111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450557.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 10111212111122 its reverse (22111121211101), we get a palindrome (32222333322223).

The spelling of 10111212111122 in words is "ten trillion, one hundred eleven billion, two hundred twelve million, one hundred eleven thousand, one hundred twenty-two".