220111210222001 has 32 divisors (see below), whose sum is σ = 271122343188480. Its totient is φ = 174394848773376.

The previous prime is 220111210221961. The next prime is 220111210222031. The reversal of 220111210222001 is 100222012111022.

It is not a de Polignac number, because 220111210222001 - 2²⁶ = 220111143113137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220111210222031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7282871 + ... + 22209516.

It is an arithmetic number, because the mean of its divisors is an integer number (8472573224640).

Almost surely, 2^{220111210222001} is an apocalyptic number.

It is an amenable number.

220111210222001 is a deficient number, since it is larger than the sum of its proper divisors (51011132966479).

220111210222001 is a wasteful number, since it uses less digits than its factorization.

220111210222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29493533.

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

Adding to 220111210222001 its reverse (100222012111022), we get a palindrome (320333222333023).

The spelling of 220111210222001 in words is "two hundred twenty trillion, one hundred eleven billion, two hundred ten million, two hundred twenty-two thousand, one".