1012022020121 has 16 divisors (see below), whose sum is σ = 1172858932224. Its totient is φ = 855292254864.

The previous prime is 1012022020111. The next prime is 1012022020133. The reversal of 1012022020121 is 1210202202101.

It is a cyclic number.

It is not a de Polignac number, because 1012022020121 - 2⁶ = 1012022020057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012022020096 and 1012022020105.

It is not an unprimeable number, because it can be changed into a prime (1012022020111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1439231 + ... + 2023716.

It is an arithmetic number, because the mean of its divisors is an integer number (73303683264).

Almost surely, 2^{1012022020121} is an apocalyptic number.

It is an amenable number.

1012022020121 is a deficient number, since it is larger than the sum of its proper divisors (160836912103).

1012022020121 is an equidigital number, since it uses as much as digits as its factorization.

1012022020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463540.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1012022020121 its reverse (1210202202101), we get a palindrome (2222224222222).

The spelling of 1012022020121 in words is "one trillion, twelve billion, twenty-two million, twenty thousand, one hundred twenty-one".