2021211212010 has 16 divisors (see below), whose sum is σ = 4850906908896. Its totient is φ = 538989656528.

The previous prime is 2021211211973. The next prime is 2021211212011. The reversal of 2021211212010 is 102121121202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (2021211212011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33686853504 + ... + 33686853563.

It is an arithmetic number, because the mean of its divisors is an integer number (303181681806).

Almost surely, 2^{2021211212010} is an apocalyptic number.

2021211212010 is an abundant number, since it is smaller than the sum of its proper divisors (2829695696886).

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

2021211212010 is a wasteful number, since it uses less digits than its factorization.

2021211212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67373707077.

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

Adding to 2021211212010 its reverse (102121121202), we get a palindrome (2123332333212).

The spelling of 2021211212010 in words is "two trillion, twenty-one billion, two hundred eleven million, two hundred twelve thousand, ten".