1011121212122 has 32 divisors (see below), whose sum is σ = 1768848355200. Its totient is φ = 433307478240.

The previous prime is 1011121212109. The next prime is 1011121212133. The reversal of 1011121212122 is 2212121211101.

It is a super-2 number, since 2×1011121212122² (a number of 25 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 1011121212122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11795597 + ... + 11881007.

It is an arithmetic number, because the mean of its divisors is an integer number (55276511100).

Almost surely, 2^{1011121212122} is an apocalyptic number.

1011121212122 is a deficient number, since it is larger than the sum of its proper divisors (757727143078).

1011121212122 is an equidigital number, since it uses as much as digits as its factorization.

1011121212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102691 (or 102677 counting only the distinct ones).

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

Adding to 1011121212122 its reverse (2212121211101), we get a palindrome (3223242423223).

The spelling of 1011121212122 in words is "one trillion, eleven billion, one hundred twenty-one million, two hundred twelve thousand, one hundred twenty-two".