11110212209978 has 16 divisors (see below), whose sum is σ = 19047116957184. Its totient is φ = 4761259797840.

The previous prime is 11110212209927. The next prime is 11110212210059. The reversal of 11110212209978 is 87990221201111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21377450 + ... + 21890997.

It is an arithmetic number, because the mean of its divisors is an integer number (1190444809824).

Almost surely, 2^{11110212209978} is an apocalyptic number.

11110212209978 is a deficient number, since it is larger than the sum of its proper divisors (7936904747206).

11110212209978 is a wasteful number, since it uses less digits than its factorization.

11110212209978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43286797.

The product of its (nonzero) digits is 36288, while the sum is 44.

The spelling of 11110212209978 in words is "eleven trillion, one hundred ten billion, two hundred twelve million, two hundred nine thousand, nine hundred seventy-eight".