2021010111212 has 6 divisors (see below), whose sum is σ = 3536767694628. Its totient is φ = 1010505055604.

The previous prime is 2021010111187. The next prime is 2021010111221. The reversal of 2021010111212 is 2121110101202.

It is a super-2 number, since 2×2021010111212² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252626263898 + ... + 252626263905.

It is an arithmetic number, because the mean of its divisors is an integer number (589461282438).

Almost surely, 2^{2021010111212} is an apocalyptic number.

It is an amenable number.

2021010111212 is a deficient number, since it is larger than the sum of its proper divisors (1515757583416).

2021010111212 is a wasteful number, since it uses less digits than its factorization.

2021010111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505252527807 (or 505252527805 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2021010111212 its reverse (2121110101202), we get a palindrome (4142120212414).

The spelling of 2021010111212 in words is "two trillion, twenty-one billion, ten million, one hundred eleven thousand, two hundred twelve".