1000211012078 has 4 divisors (see below), whose sum is σ = 1500316518120. Its totient is φ = 500105506038.

The previous prime is 1000211012077. The next prime is 1000211012081. The reversal of 1000211012078 is 8702101120001.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000211012077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250052753018 + ... + 250052753021.

It is an arithmetic number, because the mean of its divisors is an integer number (375079129530).

Almost surely, 2^{1000211012078} is an apocalyptic number.

1000211012078 is a deficient number, since it is larger than the sum of its proper divisors (500105506042).

1000211012078 is an equidigital number, since it uses as much as digits as its factorization.

1000211012078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500105506041.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 1000211012078 its reverse (8702101120001), we get a palindrome (9702312132079).

The spelling of 1000211012078 in words is "one trillion, two hundred eleven million, twelve thousand, seventy-eight".