1010021030121 has 4 divisors (see below), whose sum is σ = 1346694706832. Its totient is φ = 673347353412.

The previous prime is 1010021030101. The next prime is 1010021030131. The reversal of 1010021030121 is 1210301200101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1010021030121 - 2⁵ = 1010021030089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010021030097 and 1010021030106.

It is not an unprimeable number, because it can be changed into a prime (1010021030101) 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 3 ways as a sum of consecutive naturals, for example, 168336838351 + ... + 168336838356.

It is an arithmetic number, because the mean of its divisors is an integer number (336673676708).

Almost surely, 2^{1010021030121} is an apocalyptic number.

It is an amenable number.

1010021030121 is a deficient number, since it is larger than the sum of its proper divisors (336673676711).

1010021030121 is an equidigital number, since it uses as much as digits as its factorization.

1010021030121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336673676710.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 1010021030121 its reverse (1210301200101), we get a palindrome (2220322230222).

The spelling of 1010021030121 in words is "one trillion, ten billion, twenty-one million, thirty thousand, one hundred twenty-one".