2021001211212 has 48 divisors (see below), whose sum is σ = 4723418810880. Its totient is φ = 672560287168.

The previous prime is 2021001211157. The next prime is 2021001211241. The reversal of 2021001211212 is 2121121001202.

It is a junction number, because it is equal to n+sod(n) for n = 2021001211191 and 2021001211200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114997258 + ... + 115014830.

It is an arithmetic number, because the mean of its divisors is an integer number (98404558560).

Almost surely, 2^{2021001211212} is an apocalyptic number.

It is an amenable number.

2021001211212 is an abundant number, since it is smaller than the sum of its proper divisors (2702417599668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021001211212 is a wasteful number, since it uses less digits than its factorization.

2021001211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32782 (or 32780 counting only the distinct ones).

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

Adding to 2021001211212 its reverse (2121121001202), we get a palindrome (4142122212414).

The spelling of 2021001211212 in words is "two trillion, twenty-one billion, one million, two hundred eleven thousand, two hundred twelve".