2010121010021 has 8 divisors (see below), whose sum is σ = 2025916843104. Its totient is φ = 1994332016560.

The previous prime is 2010121010017. The next prime is 2010121010047. The reversal of 2010121010021 is 1200101210102.

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 2010121010021 - 2² = 2010121010017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2010121009984 and 2010121010011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010121010921) 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, 1119011 + ... + 2296176.

It is an arithmetic number, because the mean of its divisors is an integer number (253239605388).

Almost surely, 2^{2010121010021} is an apocalyptic number.

It is an amenable number.

2010121010021 is a deficient number, since it is larger than the sum of its proper divisors (15795833083).

2010121010021 is a wasteful number, since it uses less digits than its factorization.

2010121010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419811.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2010121010021 its reverse (1200101210102), we get a palindrome (3210222220123).

The spelling of 2010121010021 in words is "two trillion, ten billion, one hundred twenty-one million, ten thousand, twenty-one".