10120212122021 has 8 divisors (see below), whose sum is σ = 10717652948184. Its totient is φ = 9523008432640.

The previous prime is 10120212122011. The next prime is 10120212122023. The reversal of 10120212122021 is 12022121202101.

It can be written as a sum of positive squares in 4 ways, for example, as 7937663872996 + 2182548249025 = 2817386^2 + 1477345^2 .

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 10120212122021 - 2¹⁴ = 10120212105637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120212122023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59196320 + ... + 59367033.

It is an arithmetic number, because the mean of its divisors is an integer number (1339706618523).

Almost surely, 2^{10120212122021} is an apocalyptic number.

It is an amenable number.

10120212122021 is a deficient number, since it is larger than the sum of its proper divisors (597440826163).

10120212122021 is a wasteful number, since it uses less digits than its factorization.

10120212122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118568391.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10120212122021 its reverse (12022121202101), we get a palindrome (22142333324122).

The spelling of 10120212122021 in words is "ten trillion, one hundred twenty billion, two hundred twelve million, one hundred twenty-two thousand, twenty-one".