2021210221104 has 120 divisors (see below), whose sum is σ = 5931796203840. Its totient is φ = 641593322496.

The previous prime is 2021210221091. The next prime is 2021210221159. The reversal of 2021210221104 is 4011220121202.

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 23 ways as a sum of consecutive naturals, for example, 3010264 + ... + 3619959.

It is an arithmetic number, because the mean of its divisors is an integer number (49431635032).

Almost surely, 2^{2021210221104} is an apocalyptic number.

2021210221104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2021210221104 is an abundant number, since it is smaller than the sum of its proper divisors (3910585982736).

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

2021210221104 is a wasteful number, since it uses less digits than its factorization.

2021210221104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6630339 (or 6630330 counting only the distinct ones).

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

Adding to 2021210221104 its reverse (4011220121202), we get a palindrome (6032430342306).

The spelling of 2021210221104 in words is "two trillion, twenty-one billion, two hundred ten million, two hundred twenty-one thousand, one hundred four".