1021221310202 has 32 divisors (see below), whose sum is σ = 1587090352320. Its totient is φ = 492245994240.

The previous prime is 1021221310189. The next prime is 1021221310211. The reversal of 1021221310202 is 2020131221201.

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, 115166573 + ... + 115175439.

It is an arithmetic number, because the mean of its divisors is an integer number (49596573510).

Almost surely, 2^{1021221310202} is an apocalyptic number.

1021221310202 is a deficient number, since it is larger than the sum of its proper divisors (565869042118).

1021221310202 is a wasteful number, since it uses less digits than its factorization.

1021221310202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11726.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1021221310202 its reverse (2020131221201), we get a palindrome (3041352531403).

The spelling of 1021221310202 in words is "one trillion, twenty-one billion, two hundred twenty-one million, three hundred ten thousand, two hundred two".