1021114020204 has 216 divisors, whose sum is σ = 2772845895456. Its totient is φ = 316128384000.

The previous prime is 1021114020191. The next prime is 1021114020253. The reversal of 1021114020204 is 4020204111201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 447659544 + ... + 447661824.

It is an arithmetic number, because the mean of its divisors is an integer number (12837249516).

Almost surely, 2^{1021114020204} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021114020204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1386422947728).

1021114020204 is an abundant number, since it is smaller than the sum of its proper divisors (1751731875252).

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

1021114020204 is a wasteful number, since it uses less digits than its factorization.

1021114020204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569 (or 2463 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1021114020204 its reverse (4020204111201), we get a palindrome (5041318131405).

The spelling of 1021114020204 in words is "one trillion, twenty-one billion, one hundred fourteen million, twenty thousand, two hundred four".