1202021133420 has 192 divisors, whose sum is σ = 3727300953600. Its totient is φ = 288254453760.

The previous prime is 1202021133413. The next prime is 1202021133427. The reversal of 1202021133420 is 243311202021.

It is an interprime number because it is at equal distance from previous prime (1202021133413) and next prime (1202021133427).

It is not an unprimeable number, because it can be changed into a prime (1202021133427) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1381851 + ... + 2076909.

It is an arithmetic number, because the mean of its divisors is an integer number (19413025800).

Almost surely, 2^{1202021133420} is an apocalyptic number.

1202021133420 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 1202021133420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1863650476800).

1202021133420 is an abundant number, since it is smaller than the sum of its proper divisors (2525279820180).

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

1202021133420 is a wasteful number, since it uses less digits than its factorization.

1202021133420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695168 (or 695166 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1202021133420 its reverse (243311202021), we get a palindrome (1445332335441).

The spelling of 1202021133420 in words is "one trillion, two hundred two billion, twenty-one million, one hundred thirty-three thousand, four hundred twenty".