1202212011220 has 384 divisors, whose sum is σ = 3056645652480. Its totient is φ = 392325120000.

The previous prime is 1202212011199. The next prime is 1202212011223. The reversal of 1202212011220 is 221102122021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1202212011194 and 1202212011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202212011223) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1269494787 + ... + 1269495733.

It is an arithmetic number, because the mean of its divisors is an integer number (7960014720).

Almost surely, 2^{1202212011220} is an apocalyptic number.

1202212011220 is a gapful number since it is divisible by the number (10) 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 1202212011220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1528322826240).

1202212011220 is an abundant number, since it is smaller than the sum of its proper divisors (1854433641260).

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

1202212011220 is a wasteful number, since it uses less digits than its factorization.

1202212011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215 (or 1213 counting only the distinct ones).

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

Adding to 1202212011220 its reverse (221102122021), we get a palindrome (1423314133241).

The spelling of 1202212011220 in words is "one trillion, two hundred two billion, two hundred twelve million, eleven thousand, two hundred twenty".