1012021101121 has 32 divisors (see below), whose sum is σ = 1089275299200. Its totient is φ = 938507781120.

The previous prime is 1012021101109. The next prime is 1012021101151. The reversal of 1012021101121 is 1211011202101.

It is a happy number.

It is not a de Polignac number, because 1012021101121 - 2²⁹ = 1011484230209 is a prime.

It is a super-3 number, since 3×1012021101121³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012021101151) 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, 21831450 + ... + 21877756.

It is an arithmetic number, because the mean of its divisors is an integer number (34039853100).

Almost surely, 2^{1012021101121} is an apocalyptic number.

It is an amenable number.

1012021101121 is a deficient number, since it is larger than the sum of its proper divisors (77254198079).

1012021101121 is a wasteful number, since it uses less digits than its factorization.

1012021101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46689.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1012021101121 its reverse (1211011202101), we get a palindrome (2223032303222).

The spelling of 1012021101121 in words is "one trillion, twelve billion, twenty-one million, one hundred one thousand, one hundred twenty-one".