220111230123021 has 8 divisors (see below), whose sum is σ = 293489271344160. Its totient is φ = 146737004491952.

The previous prime is 220111230123011. The next prime is 220111230123041. The reversal of 220111230123021 is 120321032111022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220111230123021 - 2¹⁴ = 220111230106637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111230123011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953762910 + ... + 953993663.

It is an arithmetic number, because the mean of its divisors is an integer number (36686158918020).

Almost surely, 2^{220111230123021} is an apocalyptic number.

It is an amenable number.

220111230123021 is a deficient number, since it is larger than the sum of its proper divisors (73378041221139).

220111230123021 is a wasteful number, since it uses less digits than its factorization.

220111230123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907795035.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 220111230123021 its reverse (120321032111022), we get a palindrome (340432262234043).

The spelling of 220111230123021 in words is "two hundred twenty trillion, one hundred eleven billion, two hundred thirty million, one hundred twenty-three thousand, twenty-one".