110021229978 has 16 divisors (see below), whose sum is σ = 240046320096. Its totient is φ = 33339766640.

The previous prime is 110021229971. The next prime is 110021229979. The reversal of 110021229978 is 879922120011.

It is not an unprimeable number, because it can be changed into a prime (110021229971) 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, 833494101 + ... + 833494232.

It is an arithmetic number, because the mean of its divisors is an integer number (15002895006).

Almost surely, 2^110021229978 is an apocalyptic number.

110021229978 is an abundant number, since it is smaller than the sum of its proper divisors (130025090118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

110021229978 is a wasteful number, since it uses less digits than its factorization.

110021229978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666988349.

The product of its (nonzero) digits is 36288, while the sum is 42.

Adding to 110021229978 its reverse (879922120011), we get a palindrome (989943349989).

The spelling of 110021229978 in words is "one hundred ten billion, twenty-one million, two hundred twenty-nine thousand, nine hundred seventy-eight".