1012012121021 has 32 divisors (see below), whose sum is σ = 1145069568000. Its totient is φ = 886085424000.

The previous prime is 1012012120993. The next prime is 1012012121047. The reversal of 1012012121021 is 1201212102101.

It is a cyclic number.

It is not a de Polignac number, because 1012012121021 - 2³⁰ = 1010938379197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012012120987 and 1012012121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012012121221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217681505 + ... + 217686153.

It is an arithmetic number, because the mean of its divisors is an integer number (35783424000).

Almost surely, 2^{1012012121021} is an apocalyptic number.

1012012121021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012012121021 is a deficient number, since it is larger than the sum of its proper divisors (133057446979).

1012012121021 is a wasteful number, since it uses less digits than its factorization.

1012012121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7601.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1012012121021 its reverse (1201212102101), we get a palindrome (2213224223122).

It can be divided in two parts, 101201 and 2121021, that added together give a palindrome (2222222).

The spelling of 1012012121021 in words is "one trillion, twelve billion, twelve million, one hundred twenty-one thousand, twenty-one".