1021220122202 has 32 divisors (see below), whose sum is σ = 1772458329600. Its totient is φ = 432221136048.

The previous prime is 1021220122201. The next prime is 1021220122207. The reversal of 1021220122202 is 2022210221201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1021220122201) 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, 2777249 + ... + 3123387.

It is an arithmetic number, because the mean of its divisors is an integer number (55389322800).

Almost surely, 2^{1021220122202} is an apocalyptic number.

1021220122202 is a deficient number, since it is larger than the sum of its proper divisors (751238207398).

1021220122202 is a wasteful number, since it uses less digits than its factorization.

1021220122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348770.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1021220122202 its reverse (2022210221201), we get a palindrome (3043430343403).

The spelling of 1021220122202 in words is "one trillion, twenty-one billion, two hundred twenty million, one hundred twenty-two thousand, two hundred two".