1220121102202 has 16 divisors (see below), whose sum is σ = 1941062228352. Its totient is φ = 573970011120.

The previous prime is 1220121102191. The next prime is 1220121102229. The reversal of 1220121102202 is 2022011210221.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217410078 + ... + 217415689.

It is an arithmetic number, because the mean of its divisors is an integer number (121316389272).

Almost surely, 2^{1220121102202} is an apocalyptic number.

1220121102202 is a deficient number, since it is larger than the sum of its proper divisors (720941126150).

1220121102202 is a wasteful number, since it uses less digits than its factorization.

1220121102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434825853.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1220121102202 its reverse (2022011210221), we get a palindrome (3242132312423).

The spelling of 1220121102202 in words is "one trillion, two hundred twenty billion, one hundred twenty-one million, one hundred two thousand, two hundred two".