200201022978 has 32 divisors (see below), whose sum is σ = 442954386432. Its totient is φ = 59812510800.

The previous prime is 200201022977. The next prime is 200201023013. The reversal of 200201022978 is 879220102002.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200201022977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21356926 + ... + 21366297.

It is an arithmetic number, because the mean of its divisors is an integer number (13842324576).

Almost surely, 2^200201022978 is an apocalyptic number.

200201022978 is an abundant number, since it is smaller than the sum of its proper divisors (242753363454).

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

200201022978 is a wasteful number, since it uses less digits than its factorization.

200201022978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42723310.

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 200201022978 in words is "two hundred billion, two hundred one million, twenty-two thousand, nine hundred seventy-eight".