1220202010101 has 32 divisors (see below), whose sum is σ = 1676714611968. Its totient is φ = 789023370240.

The previous prime is 1220202010063. The next prime is 1220202010123. The reversal of 1220202010101 is 1010102020221.

It is not a de Polignac number, because 1220202010101 - 2²⁵ = 1220168455669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220202010201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3924000 + ... + 4223526.

It is an arithmetic number, because the mean of its divisors is an integer number (52397331624).

Almost surely, 2^{1220202010101} is an apocalyptic number.

It is an amenable number.

1220202010101 is a deficient number, since it is larger than the sum of its proper divisors (456512601867).

1220202010101 is a wasteful number, since it uses less digits than its factorization.

1220202010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299901.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1220202010101 its reverse (1010102020221), we get a palindrome (2230304030322).

The spelling of 1220202010101 in words is "one trillion, two hundred twenty billion, two hundred two million, ten thousand, one hundred one".