1002201023120 has 80 divisors (see below), whose sum is σ = 2691472520448. Its totient is φ = 342999275520.

The previous prime is 1002201023119. The next prime is 1002201023129. The reversal of 1002201023120 is 213201022001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 1002201023095 and 1002201023104.

It is not an unprimeable number, because it can be changed into a prime (1002201023129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33481064 + ... + 33510983.

Almost surely, 2^{1002201023120} is an apocalyptic number.

1002201023120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002201023120 is an abundant number, since it is smaller than the sum of its proper divisors (1689271497328).

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

1002201023120 is a wasteful number, since it uses less digits than its factorization.

1002201023120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66992088 (or 66992082 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1002201023120 its reverse (213201022001), we get a palindrome (1215402045121).

The spelling of 1002201023120 in words is "one trillion, two billion, two hundred one million, twenty-three thousand, one hundred twenty".