20212202222212 has 288 divisors, whose sum is σ = 48244068454400. Its totient is φ = 7209709689600.

The previous prime is 20212202222141. The next prime is 20212202222237. The reversal of 20212202222212 is 21222220221202.

It is a super-2 number, since 2×20212202222212² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2901130753 + ... + 2901137719.

Almost surely, 2^{20212202222212} is an apocalyptic number.

20212202222212 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 20212202222212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24122034227200).

20212202222212 is an abundant number, since it is smaller than the sum of its proper divisors (28031866232188).

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

20212202222212 is a wasteful number, since it uses less digits than its factorization.

20212202222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7543 (or 7530 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20212202222212 its reverse (21222220221202), we get a palindrome (41434422443414).

The spelling of 20212202222212 in words is "twenty trillion, two hundred twelve billion, two hundred two million, two hundred twenty-two thousand, two hundred twelve".