1222022202012 has 120 divisors (see below), whose sum is σ = 3219637961232. Its totient is φ = 404157600000.

The previous prime is 1222022201903. The next prime is 1222022202041. The reversal of 1222022202012 is 2102022202221.

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 39 ways as a sum of consecutive naturals, for example, 31720762 + ... + 31759262.

Almost surely, 2^{1222022202012} is an apocalyptic number.

1222022202012 is a gapful number since it is divisible by the number (12) 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 1222022202012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1609818980616).

1222022202012 is an abundant number, since it is smaller than the sum of its proper divisors (1997615759220).

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

1222022202012 is a wasteful number, since it uses less digits than its factorization.

1222022202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39281 (or 39270 counting only the distinct ones).

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

Adding to 1222022202012 its reverse (2102022202221), we get a palindrome (3324044404233).

The spelling of 1222022202012 in words is "one trillion, two hundred twenty-two billion, twenty-two million, two hundred two thousand, twelve".