12220022101 has 4 divisors (see below), whose sum is σ = 13965739552. Its totient is φ = 10474304652.

The previous prime is 12220022071. The next prime is 12220022183. The reversal of 12220022101 is 10122002221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10122002221 = 19 ⋅532736959.

It is not a de Polignac number, because 12220022101 - 2⁵ = 12220022069 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 (12220052101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872858715 + ... + 872858728.

It is an arithmetic number, because the mean of its divisors is an integer number (3491434888).

Almost surely, 2^12220022101 is an apocalyptic number.

It is an amenable number.

12220022101 is a deficient number, since it is larger than the sum of its proper divisors (1745717451).

12220022101 is an equidigital number, since it uses as much as digits as its factorization.

12220022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745717450.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12220022101 its reverse (10122002221), we get a palindrome (22342024322).

The spelling of 12220022101 in words is "twelve billion, two hundred twenty million, twenty-two thousand, one hundred one".