1202102002020 has 48 divisors (see below), whose sum is σ = 3399211222848. Its totient is φ = 317386665600.

The previous prime is 1202102001949. The next prime is 1202102002067. The reversal of 1202102002020 is 202002012021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1202102001987 and 1202102002005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99177274 + ... + 99189393.

It is an arithmetic number, because the mean of its divisors is an integer number (70816900476).

Almost surely, 2^{1202102002020} is an apocalyptic number.

1202102002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202102002020 is an abundant number, since it is smaller than the sum of its proper divisors (2197109220828).

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

1202102002020 is a wasteful number, since it uses less digits than its factorization.

1202102002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198366780 (or 198366778 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1202102002020 its reverse (202002012021), we get a palindrome (1404104014041).

The spelling of 1202102002020 in words is "one trillion, two hundred two billion, one hundred two million, two thousand, twenty".