10211122121112 has 96 divisors (see below), whose sum is σ = 30174559506000. Its totient is φ = 3093732245760.

The previous prime is 10211122121107. The next prime is 10211122121251. The reversal of 10211122121112 is 21112122111201.

It is a happy number.

10211122121112 is a `hidden beast` number, since 10 + 211 + 1 + 221 + 211 + 12 = 666.

It is a super-2 number, since 2×10211122121112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3352714 + ... + 5626982.

Almost surely, 2^{10211122121112} is an apocalyptic number.

10211122121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10211122121112 is an abundant number, since it is smaller than the sum of its proper divisors (19963437384888).

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

10211122121112 is a wasteful number, since it uses less digits than its factorization.

10211122121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279961 (or 2279954 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 10211122121112 its reverse (21112122111201), we get a palindrome (31323244232313).

The spelling of 10211122121112 in words is "ten trillion, two hundred eleven billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twelve".