21203296773120 has 2112 divisors, whose sum is σ = 98371505037312. Its totient is φ = 4087480320000.

The previous prime is 21203296773107. The next prime is 21203296773181. The reversal of 21203296773120 is 2137769230212.

21203296773120 is a `hidden beast` number, since 2 + 1 + 2 + 0 + 329 + 6 + 7 + 7 + 312 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2112).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4282626645 + ... + 4282631595.

Almost surely, 2^{21203296773120} is an apocalyptic number.

21203296773120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21203296773120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49185752518656).

21203296773120 is an abundant number, since it is smaller than the sum of its proper divisors (77168208264192).

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

21203296773120 is a wasteful number, since it uses less digits than its factorization.

21203296773120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5088 (or 5067 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 21203296773120 in words is "twenty-one trillion, two hundred three billion, two hundred ninety-six million, seven hundred seventy-three thousand, one hundred twenty".