1020211848978 has 32 divisors (see below), whose sum is σ = 2331993590784. Its totient is φ = 291479000592.

The previous prime is 1020211848977. The next prime is 1020211849003. The reversal of 1020211848978 is 8798481120201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020211848978.

It is not an unprimeable number, because it can be changed into a prime (1020211848973) 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, 851101 + ... + 1662767.

It is an arithmetic number, because the mean of its divisors is an integer number (72874799712).

Almost surely, 2^{1020211848978} is an apocalyptic number.

1020211848978 is an abundant number, since it is smaller than the sum of its proper divisors (1311781741806).

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

1020211848978 is a wasteful number, since it uses less digits than its factorization.

1020211848978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841606.

The product of its (nonzero) digits is 516096, while the sum is 51.

The spelling of 1020211848978 in words is "one trillion, twenty billion, two hundred eleven million, eight hundred forty-eight thousand, nine hundred seventy-eight".