10011121222122 has 40 divisors (see below), whose sum is σ = 23155950652032. Its totient is φ = 3229393941000.

The previous prime is 10011121222121. The next prime is 10011121222127. The reversal of 10011121222122 is 22122212111001.

10011121222122 is a `hidden beast` number, since 100 + 111 + 212 + 221 + 22 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 10011121222095 and 10011121222104.

It is not an unprimeable number, because it can be changed into a prime (10011121222121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 996721504 + ... + 996731547.

Almost surely, 2^{10011121222122} is an apocalyptic number.

10011121222122 is an abundant number, since it is smaller than the sum of its proper divisors (13144829429910).

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

10011121222122 is a wasteful number, since it uses less digits than its factorization.

10011121222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993453096 (or 1993453087 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 10011121222122 its reverse (22122212111001), we get a palindrome (32133333333123).

The spelling of 10011121222122 in words is "ten trillion, eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-two".