1012121021122 has 16 divisors (see below), whose sum is σ = 1521468023040. Its totient is φ = 504965176912.

The previous prime is 1012121021111. The next prime is 1012121021129. The reversal of 1012121021122 is 2211201212101.

It is a super-2 number, since 2×1012121021122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012121021096 and 1012121021105.

It is not an unprimeable number, because it can be changed into a prime (1012121021129) 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, 15537873 + ... + 15602875.

It is an arithmetic number, because the mean of its divisors is an integer number (95091751440).

Almost surely, 2^{1012121021122} is an apocalyptic number.

1012121021122 is a deficient number, since it is larger than the sum of its proper divisors (509347001918).

1012121021122 is a wasteful number, since it uses less digits than its factorization.

1012121021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81737.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1012121021122 its reverse (2211201212101), we get a palindrome (3223322233223).

The spelling of 1012121021122 in words is "one trillion, twelve billion, one hundred twenty-one million, twenty-one thousand, one hundred twenty-two".