10121142021 has 16 divisors (see below), whose sum is σ = 13759982400. Its totient is φ = 6615573120.

The previous prime is 10121141999. The next prime is 10121142029. The reversal of 10121142021 is 12024112101.

It is not a de Polignac number, because 10121142021 - 2⁶ = 10121141957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121142029) 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, 31071 + ... + 145628.

It is an arithmetic number, because the mean of its divisors is an integer number (859998900).

Almost surely, 2^10121142021 is an apocalyptic number.

It is an amenable number.

10121142021 is a deficient number, since it is larger than the sum of its proper divisors (3638840379).

10121142021 is a wasteful number, since it uses less digits than its factorization.

10121142021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177076.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10121142021 its reverse (12024112101), we get a palindrome (22145254122).

The spelling of 10121142021 in words is "ten billion, one hundred twenty-one million, one hundred forty-two thousand, twenty-one".