20220221022012 has 144 divisors (see below), whose sum is σ = 56249499930624. Its totient is φ = 6073504416000.

The previous prime is 20220221021993. The next prime is 20220221022059. The reversal of 20220221022012 is 21022012202202.

20220221022012 is a `hidden beast` number, since 2 + 0 + 220 + 2 + 210 + 220 + 12 = 666.

It is a super-3 number, since 3×20220221022012³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54684312 + ... + 55052832.

It is an arithmetic number, because the mean of its divisors is an integer number (390621527296).

Almost surely, 2^{20220221022012} is an apocalyptic number.

20220221022012 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 20220221022012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28124749965312).

20220221022012 is an abundant number, since it is smaller than the sum of its proper divisors (36029278908612).

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

20220221022012 is a wasteful number, since it uses less digits than its factorization.

20220221022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369760 (or 369755 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20220221022012 its reverse (21022012202202), we get a palindrome (41242233224214).

The spelling of 20220221022012 in words is "twenty trillion, two hundred twenty billion, two hundred twenty-one million, twenty-two thousand, twelve".