1202221440420 has 576 divisors, whose sum is σ = 4801251926016. Its totient is φ = 217028321280.

The previous prime is 1202221440349. The next prime is 1202221440457. The reversal of 1202221440420 is 240441222021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 17322709 + ... + 17391971.

It is an arithmetic number, because the mean of its divisors is an integer number (8335506816).

Almost surely, 2^{1202221440420} is an apocalyptic number.

1202221440420 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 1202221440420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2400625963008).

1202221440420 is an abundant number, since it is smaller than the sum of its proper divisors (3599030485596).

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

1202221440420 is a wasteful number, since it uses less digits than its factorization.

1202221440420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69340 (or 69321 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 1202221440420 its reverse (240441222021), we get a palindrome (1442662662441).

The spelling of 1202221440420 in words is "one trillion, two hundred two billion, two hundred twenty-one million, four hundred forty thousand, four hundred twenty".