1202120212020 has 384 divisors, whose sum is σ = 4262165548032. Its totient is φ = 246343680000.

The previous prime is 1202120212003. The next prime is 1202120212061. The reversal of 1202120212020 is 202120212021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 121409070 + ... + 121418970.

It is an arithmetic number, because the mean of its divisors is an integer number (11099389448).

Almost surely, 2^{1202120212020} is an apocalyptic number.

1202120212020 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 1202120212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2131082774016).

1202120212020 is an abundant number, since it is smaller than the sum of its proper divisors (3060045336012).

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

1202120212020 is a wasteful number, since it uses less digits than its factorization.

1202120212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10571 (or 10569 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1202120212020 its reverse (202120212021), we get a palindrome (1404240424041).

Subtracting from 1202120212020 its reverse (202120212021), we obtain a palindrome (999999999999).

The spelling of 1202120212020 in words is "one trillion, two hundred two billion, one hundred twenty million, two hundred twelve thousand, twenty".