1010020112121 has 16 divisors (see below), whose sum is σ = 1379776507200. Its totient is φ = 656810868480.

The previous prime is 1010020112113. The next prime is 1010020112159. The reversal of 1010020112121 is 1212110200101.

It is not a de Polignac number, because 1010020112121 - 2³ = 1010020112113 is a prime.

It is a super-2 number, since 2×1010020112121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1010020112097 and 1010020112106.

It is not an unprimeable number, because it can be changed into a prime (1010020112191) 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, 17466 + ... + 1421388.

It is an arithmetic number, because the mean of its divisors is an integer number (86236031700).

Almost surely, 2^{1010020112121} is an apocalyptic number.

It is an amenable number.

1010020112121 is a deficient number, since it is larger than the sum of its proper divisors (369756395079).

1010020112121 is a wasteful number, since it uses less digits than its factorization.

1010020112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409816.

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

Adding to 1010020112121 its reverse (1212110200101), we get a palindrome (2222130312222).

The spelling of 1010020112121 in words is "one trillion, ten billion, twenty million, one hundred twelve thousand, one hundred twenty-one".