1220101110202 has 16 divisors (see below), whose sum is σ = 1971140493672. Its totient is φ = 563064180480.

The previous prime is 1220101110169. The next prime is 1220101110259. The reversal of 1220101110202 is 2020111010221.

It can be written as a sum of positive squares in 4 ways, for example, as 704506743801 + 515594366401 = 839349^2 + 718049^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2223699 + ... + 2717542.

Almost surely, 2^{1220101110202} is an apocalyptic number.

1220101110202 is a deficient number, since it is larger than the sum of its proper divisors (751039383470).

1220101110202 is a wasteful number, since it uses less digits than its factorization.

1220101110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4950753.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1220101110202 its reverse (2020111010221), we get a palindrome (3240212120423).

The spelling of 1220101110202 in words is "one trillion, two hundred twenty billion, one hundred one million, one hundred ten thousand, two hundred two".