1223101030021 has 16 divisors (see below), whose sum is σ = 1394711365824. Its totient is φ = 1062569988864.

The previous prime is 1223101029989. The next prime is 1223101030027. The reversal of 1223101030021 is 1200301013221.

It is not a de Polignac number, because 1223101030021 - 2⁵ = 1223101029989 is a prime.

It is a super-2 number, since 2×1223101030021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223101029977 and 1223101030004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223101030027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9079666 + ... + 9213388.

It is an arithmetic number, because the mean of its divisors is an integer number (87169460364).

Almost surely, 2^{1223101030021} is an apocalyptic number.

It is an amenable number.

1223101030021 is a deficient number, since it is larger than the sum of its proper divisors (171610335803).

1223101030021 is a wasteful number, since it uses less digits than its factorization.

1223101030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175140.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1223101030021 its reverse (1200301013221), we get a palindrome (2423402043242).

The spelling of 1223101030021 in words is "one trillion, two hundred twenty-three billion, one hundred one million, thirty thousand, twenty-one".