2021011212212 has 24 divisors (see below), whose sum is σ = 3570471162720. Its totient is φ = 1000883109600.

The previous prime is 2021011212203. The next prime is 2021011212223. The reversal of 2021011212212 is 2122121101202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430103 + ... + 2055969.

It is an arithmetic number, because the mean of its divisors is an integer number (148769631780).

Almost surely, 2^{2021011212212} is an apocalyptic number.

It is an amenable number.

2021011212212 is a deficient number, since it is larger than the sum of its proper divisors (1549459950508).

2021011212212 is a wasteful number, since it uses less digits than its factorization.

2021011212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628831 (or 1628829 counting only the distinct ones).

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

Adding to 2021011212212 its reverse (2122121101202), we get a palindrome (4143132313414).

The spelling of 2021011212212 in words is "two trillion, twenty-one billion, eleven million, two hundred twelve thousand, two hundred twelve".