220111122002021 has 8 divisors (see below), whose sum is σ = 220232749444224. Its totient is φ = 219989501425440.

The previous prime is 220111122001957. The next prime is 220111122002081. The reversal of 220111122002021 is 120200221111022.

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 220111122002021 - 2⁶ = 220111122001957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111122002081) 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, 63096710 + ... + 66493736.

It is an arithmetic number, because the mean of its divisors is an integer number (27529093680528).

Almost surely, 2^{220111122002021} is an apocalyptic number.

It is an amenable number.

220111122002021 is a deficient number, since it is larger than the sum of its proper divisors (121627442203).

220111122002021 is a wasteful number, since it uses less digits than its factorization.

220111122002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432811.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220111122002021 its reverse (120200221111022), we get a palindrome (340311343113043).

The spelling of 220111122002021 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred twenty-two million, two thousand, twenty-one".