1020011120121 has 16 divisors (see below), whose sum is σ = 1566541266944. Its totient is φ = 578274019344.

The previous prime is 1020011120113. The next prime is 1020011120137. The reversal of 1020011120121 is 1210211100201.

It is not a de Polignac number, because 1020011120121 - 2³ = 1020011120113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020011120097 and 1020011120106.

It is not an unprimeable number, because it can be changed into a prime (1020011121121) 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, 191225515 + ... + 191230848.

It is an arithmetic number, because the mean of its divisors is an integer number (97908829184).

Almost surely, 2^{1020011120121} is an apocalyptic number.

It is an amenable number.

1020011120121 is a deficient number, since it is larger than the sum of its proper divisors (546530146823).

1020011120121 is a wasteful number, since it uses less digits than its factorization.

1020011120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382456500.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1020011120121 its reverse (1210211100201), we get a palindrome (2230222220322).

The spelling of 1020011120121 in words is "one trillion, twenty billion, eleven million, one hundred twenty thousand, one hundred twenty-one".