212111021010 has 64 divisors (see below), whose sum is σ = 588799798272. Its totient is φ = 47898388416.

The previous prime is 212111020997. The next prime is 212111021021. The reversal of 212111021010 is 10120111212.

212111021010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212111021010² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6067224 + ... + 6102083.

It is an arithmetic number, because the mean of its divisors is an integer number (9199996848).

Almost surely, 2^212111021010 is an apocalyptic number.

212111021010 is an abundant number, since it is smaller than the sum of its proper divisors (376688777262).

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

212111021010 is a wasteful number, since it uses less digits than its factorization.

212111021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12169407.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 212111021010 its reverse (10120111212), we get a palindrome (222231132222).

The spelling of 212111021010 in words is "two hundred twelve billion, one hundred eleven million, twenty-one thousand, ten".