1220101202023 has 16 divisors (see below), whose sum is σ = 1364550082560. Its totient is φ = 1081283083200.

The previous prime is 1220101202011. The next prime is 1220101202029. The reversal of 1220101202023 is 3202021010221.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220101202023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220101201988 and 1220101202006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220101202029) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 480765 + ... + 1634422.

It is an arithmetic number, because the mean of its divisors is an integer number (85284380160).

Almost surely, 2^{1220101202023} is an apocalyptic number.

1220101202023 is a deficient number, since it is larger than the sum of its proper divisors (144448880537).

1220101202023 is a wasteful number, since it uses less digits than its factorization.

1220101202023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116518.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1220101202023 its reverse (3202021010221), we get a palindrome (4422122212244).

The spelling of 1220101202023 in words is "one trillion, two hundred twenty billion, one hundred one million, two hundred two thousand, twenty-three".