1010112121 has 8 divisors (see below), whose sum is σ = 1038578688. Its totient is φ = 981828000.

The previous prime is 1010112053. The next prime is 1010112149. The reversal of 1010112121 is 1212110101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1010112121 - 2¹⁹ = 1009587833 is a prime.

It is a super-2 number, since 2×1010112121² = 2040652993982237282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010112098 and 1010112107.

It is not an unprimeable number, because it can be changed into a prime (1010112821) 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, 34345 + ... + 56566.

It is an arithmetic number, because the mean of its divisors is an integer number (129822336).

Almost surely, 2^1010112121 is an apocalyptic number.

It is an amenable number.

1010112121 is a deficient number, since it is larger than the sum of its proper divisors (28466567).

1010112121 is an equidigital number, since it uses as much as digits as its factorization.

1010112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91223.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1010112121 is about 31782.2611058433. The cubic root of 1010112121 is about 1003.3594087353.

Adding to 1010112121 its reverse (1212110101), we get a palindrome (2222222222).

It can be divided in two parts, 10101 and 12121, that multiplied together give a palindrome (122434221).

The spelling of 1010112121 in words is "one billion, ten million, one hundred twelve thousand, one hundred twenty-one".