2112221021010 has 32 divisors (see below), whose sum is σ = 5082362176320. Its totient is φ = 561810969408.

The previous prime is 2112221020997. The next prime is 2112221021011. The reversal of 2112221021010 is 101201222112.

It is a super-2 number, since 2×2112221021010² (a number of 25 digits) contains 22 as substring.

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 (2112221021011) 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, 90486232 + ... + 90509571.

It is an arithmetic number, because the mean of its divisors is an integer number (158823818010).

Almost surely, 2^{2112221021010} is an apocalyptic number.

2112221021010 is an abundant number, since it is smaller than the sum of its proper divisors (2970141155310).

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

2112221021010 is a wasteful number, since it uses less digits than its factorization.

2112221021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180996202.

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

Adding to 2112221021010 its reverse (101201222112), we get a palindrome (2213422243122).

The spelling of 2112221021010 in words is "two trillion, one hundred twelve billion, two hundred twenty-one million, twenty-one thousand, ten".