2010021212121 has 16 divisors (see below), whose sum is σ = 2889665876160. Its totient is φ = 1235444028480.

The previous prime is 2010021212063. The next prime is 2010021212137. The reversal of 2010021212121 is 1212121200102.

It is not a de Polignac number, because 2010021212121 - 2⁹ = 2010021211609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2010021212121.

It is not an unprimeable number, because it can be changed into a prime (2010021212161) 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, 31052715 + ... + 31117376.

It is an arithmetic number, because the mean of its divisors is an integer number (180604117260).

Almost surely, 2^{2010021212121} is an apocalyptic number.

It is an amenable number.

2010021212121 is a deficient number, since it is larger than the sum of its proper divisors (879644664039).

2010021212121 is a wasteful number, since it uses less digits than its factorization.

2010021212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62170936.

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

Adding to 2010021212121 its reverse (1212121200102), we get a palindrome (3222142412223).

The spelling of 2010021212121 in words is "two trillion, ten billion, twenty-one million, two hundred twelve thousand, one hundred twenty-one".