1011210021078 has 16 divisors (see below), whose sum is σ = 2046786549696. Its totient is φ = 333008922440.

The previous prime is 1011210021077. The next prime is 1011210021167. The reversal of 1011210021078 is 8701200121101.

1011210021078 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011210021077) 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, 1015270608 + ... + 1015271603.

It is an arithmetic number, because the mean of its divisors is an integer number (127924159356).

Almost surely, 2^{1011210021078} is an apocalyptic number.

1011210021078 is an abundant number, since it is smaller than the sum of its proper divisors (1035576528618).

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

1011210021078 is a wasteful number, since it uses less digits than its factorization.

1011210021078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030542299.

The product of its (nonzero) digits is 224, while the sum is 24.

Adding to 1011210021078 its reverse (8701200121101), we get a palindrome (9712410142179).

The spelling of 1011210021078 in words is "one trillion, eleven billion, two hundred ten million, twenty-one thousand, seventy-eight".