1202020202020 has 48 divisors (see below), whose sum is σ = 2753989056000. Its totient is φ = 437055390720.

The previous prime is 1202020202011. The next prime is 1202020202029. The reversal of 1202020202020 is 202020202021.

It is an interprime number because it is at equal distance from previous prime (1202020202011) and next prime (1202020202029).

It is a super-2 number, since 2×1202020202020² (a number of 25 digits) contains 22 as substring.

1202020202020 is a modest number, since divided by 20202020 gives 12020 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1202020202029) 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, 2025076 + ... + 2550484.

It is an arithmetic number, because the mean of its divisors is an integer number (57374772000).

Almost surely, 2^{1202020202020} is an apocalyptic number.

1202020202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202020202020 is an abundant number, since it is smaller than the sum of its proper divisors (1551968853980).

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

1202020202020 is a wasteful number, since it uses less digits than its factorization.

1202020202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535828 (or 535826 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 1202020202020 its reverse (202020202021), we get a palindrome (1404040404041).

Subtracting from 1202020202020 its reverse (202020202021), we obtain a palindrome (999999999999).

The spelling of 1202020202020 in words is "one trillion, two hundred two billion, twenty million, two hundred two thousand, twenty".