1021020211202 has 16 divisors (see below), whose sum is σ = 1555239309624. Its totient is φ = 502662960000.

The previous prime is 1021020211201. The next prime is 1021020211219. The reversal of 1021020211202 is 2021120201201.

It can be written as a sum of positive squares in 4 ways, for example, as 964518445801 + 56501765401 = 982099^2 + 237701^2 .

It is not an unprimeable number, because it can be changed into a prime (1021020211201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13926299 + ... + 13999422.

Almost surely, 2^{1021020211202} is an apocalyptic number.

1021020211202 is a deficient number, since it is larger than the sum of its proper divisors (534219098422).

1021020211202 is a wasteful number, since it uses less digits than its factorization.

1021020211202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27926005.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1021020211202 its reverse (2021120201201), we get a palindrome (3042140412403).

The spelling of 1021020211202 in words is "one trillion, twenty-one billion, twenty million, two hundred eleven thousand, two hundred two".