220021010221012 has 216 divisors, whose sum is σ = 532147113576960. Its totient is φ = 78836418460800.

The previous prime is 220021010220983. The next prime is 220021010221043. The reversal of 220021010221012 is 210122010120022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 82234789 + ... + 84868147.

Almost surely, 2^{220021010221012} is an apocalyptic number.

220021010221012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220021010221012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266073556788480).

220021010221012 is an abundant number, since it is smaller than the sum of its proper divisors (312126103355948).

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

220021010221012 is a wasteful number, since it uses less digits than its factorization.

220021010221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2633683 (or 2633663 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220021010221012 its reverse (210122010120022), we get a palindrome (430143020341034).

It can be divided in two parts, 220021010 and 221012, that added together give a palindrome (220242022).

The spelling of 220021010221012 in words is "two hundred twenty trillion, twenty-one billion, ten million, two hundred twenty-one thousand, twelve".