1021101020202 has 48 divisors (see below), whose sum is σ = 2161856557152. Its totient is φ = 321478549920.

The previous prime is 1021101020161. The next prime is 1021101020279. The reversal of 1021101020202 is 2020201011201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4828 + ... + 1429064.

It is an arithmetic number, because the mean of its divisors is an integer number (45038678274).

Almost surely, 2^{1021101020202} is an apocalyptic number.

1021101020202 is an abundant number, since it is smaller than the sum of its proper divisors (1140755536950).

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

1021101020202 is a wasteful number, since it uses less digits than its factorization.

1021101020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424611 (or 1424592 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1021101020202 its reverse (2020201011201), we get a palindrome (3041302031403).

Subtracting 1021101020202 from its reverse (2020201011201), we obtain a palindrome (999099990999).

The spelling of 1021101020202 in words is "one trillion, twenty-one billion, one hundred one million, twenty thousand, two hundred two".