20100222997 has 8 divisors (see below), whose sum is σ = 20979907776. Its totient is φ = 19221018432.

The previous prime is 20100222979. The next prime is 20100223007. The reversal of 20100222997 is 79922200102.

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 20100222997 - 2⁷ = 20100222869 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 (20100222937) 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, 33163 + ... + 203224.

It is an arithmetic number, because the mean of its divisors is an integer number (2622488472).

Almost surely, 2^20100222997 is an apocalyptic number.

It is an amenable number.

20100222997 is a deficient number, since it is larger than the sum of its proper divisors (879684779).

20100222997 is a wasteful number, since it uses less digits than its factorization.

20100222997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240107.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 20100222997 in words is "twenty billion, one hundred million, two hundred twenty-two thousand, nine hundred ninety-seven".