12220220001 has 8 divisors (see below), whose sum is σ = 17774865504. Its totient is φ = 7406193920.

The previous prime is 12220219997. The next prime is 12220220053. The reversal of 12220220001 is 10002202221.

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 12220220001 - 2² = 12220219997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12220228001) 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, 185154816 + ... + 185154881.

It is an arithmetic number, because the mean of its divisors is an integer number (2221858188).

Almost surely, 2^12220220001 is an apocalyptic number.

12220220001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12220220001 is a deficient number, since it is larger than the sum of its proper divisors (5554645503).

12220220001 is a wasteful number, since it uses less digits than its factorization.

12220220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370309711.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12220220001 its reverse (10002202221), we get a palindrome (22222422222).

It can be divided in two parts, 12220 and 220001, that added together give a triangular number (232221 = T₆₈₁).

The spelling of 12220220001 in words is "twelve billion, two hundred twenty million, two hundred twenty thousand, one".