12212021010 has 64 divisors (see below), whose sum is σ = 33803193600. Its totient is φ = 2765705472.

The previous prime is 12212020981. The next prime is 12212021071. The reversal of 12212021010 is 1012021221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243865 + ... + 289644.

It is an arithmetic number, because the mean of its divisors is an integer number (528174900).

Almost surely, 2^12212021010 is an apocalyptic number.

12212021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212021010 is an abundant number, since it is smaller than the sum of its proper divisors (21591172590).

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

12212021010 is a wasteful number, since it uses less digits than its factorization.

12212021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533635.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12212021010 its reverse (1012021221), we get a palindrome (13224042231).

The spelling of 12212021010 in words is "twelve billion, two hundred twelve million, twenty-one thousand, ten".