10121012112021 has 8 divisors (see below), whose sum is σ = 13494702107904. Its totient is φ = 6747331762080.

The previous prime is 10121012111983. The next prime is 10121012112037. The reversal of 10121012112021 is 12021121012101.

It is a happy number.

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

It is not a de Polignac number, because 10121012112021 - 2¹⁵ = 10121012079253 is a prime.

It is a super-3 number, since 3×10121012112021³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121012112091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559761 + ... + 4533801.

It is an arithmetic number, because the mean of its divisors is an integer number (1686837763488).

Almost surely, 2^{10121012112021} is an apocalyptic number.

It is an amenable number.

10121012112021 is a deficient number, since it is larger than the sum of its proper divisors (3373689995883).

10121012112021 is an equidigital number, since it uses as much as digits as its factorization.

10121012112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4822971.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10121012112021 its reverse (12021121012101), we get a palindrome (22142133124122).

The spelling of 10121012112021 in words is "ten trillion, one hundred twenty-one billion, twelve million, one hundred twelve thousand, twenty-one".