1012101121 has 2 divisors, whose sum is σ = 1012101122. Its totient is φ = 1012101120.

The previous prime is 1012101109. The next prime is 1012101151. The reversal of 1012101121 is 1211012101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 929945025 + 82156096 = 30495^2 + 9064^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012101121 - 2¹⁷ = 1011970049 is a prime.

It is a super-3 number, since 3×1012101121³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012101098 and 1012101107.

It is not a weakly prime, because it can be changed into another prime (1012101151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506050560 + 506050561.

It is an arithmetic number, because the mean of its divisors is an integer number (506050561).

Almost surely, 2^1012101121 is an apocalyptic number.

It is an amenable number.

1012101121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012101121 is an equidigital number, since it uses as much as digits as its factorization.

1012101121 is an evil number, because the sum of its binary digits is even.

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

The square root of 1012101121 is about 31813.5367571730. The cubic root of 1012101121 is about 1004.0175447191.

Adding to 1012101121 its reverse (1211012101), we get a palindrome (2223113222).

It can be divided in two parts, 1012101 and 121, that multiplied together give a palindrome (122464221).

The spelling of 1012101121 in words is "one billion, twelve million, one hundred one thousand, one hundred twenty-one".