20012220097 has 8 divisors (see below), whose sum is σ = 20858339840. Its totient is φ = 19178635680.

The previous prime is 20012220071. The next prime is 20012220103. The reversal of 20012220097 is 79002221002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012220097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012220047) 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, 3130572 + ... + 3136957.

It is an arithmetic number, because the mean of its divisors is an integer number (2607292480).

Almost surely, 2^20012220097 is an apocalyptic number.

It is an amenable number.

20012220097 is a deficient number, since it is larger than the sum of its proper divisors (846119743).

20012220097 is a wasteful number, since it uses less digits than its factorization.

20012220097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6267663.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 20012220097 its reverse (79002221002), we get a palindrome (99014441099).

The spelling of 20012220097 in words is "twenty billion, twelve million, two hundred twenty thousand, ninety-seven".