220121010111 has 8 divisors (see below), whose sum is σ = 303615186480. Its totient is φ = 141687086912.

The previous prime is 220121010101. The next prime is 220121010143. The reversal of 220121010111 is 111010121022.

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 220121010111 - 2²⁶ = 220053901247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220121010101) 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, 1265063190 + ... + 1265063363.

It is an arithmetic number, because the mean of its divisors is an integer number (37951898310).

Almost surely, 2^220121010111 is an apocalyptic number.

220121010111 is a deficient number, since it is larger than the sum of its proper divisors (83494176369).

220121010111 is a wasteful number, since it uses less digits than its factorization.

220121010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530126585.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 220121010111 its reverse (111010121022), we get a palindrome (331131131133).

The spelling of 220121010111 in words is "two hundred twenty billion, one hundred twenty-one million, ten thousand, one hundred eleven".