221013020122 has 8 divisors (see below), whose sum is σ = 342213708672. Its totient is φ = 106941783900.

The previous prime is 221013020117. The next prime is 221013020141. The reversal of 221013020122 is 221020310122.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 221013020096 and 221013020105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1782363004 + ... + 1782363127.

It is an arithmetic number, because the mean of its divisors is an integer number (42776713584).

Almost surely, 2^221013020122 is an apocalyptic number.

221013020122 is a deficient number, since it is larger than the sum of its proper divisors (121200688550).

221013020122 is a wasteful number, since it uses less digits than its factorization.

221013020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564726164.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221013020122 its reverse (221020310122), we get a palindrome (442033330244).

Subtracting 221013020122 from its reverse (221020310122), we obtain a square (7290000 = 2700²).

The spelling of 221013020122 in words is "two hundred twenty-one billion, thirteen million, twenty thousand, one hundred twenty-two".