21611770701050 has 48 divisors (see below), whose sum is σ = 41602216930560. Its totient is φ = 8342964020160.

The previous prime is 21611770701049. The next prime is 21611770701067. The reversal of 21611770701050 is 5010707711612.

It is a super-2 number, since 2×21611770701050² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21611770700995 and 21611770701013.

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, 57587 + ... + 6574713.

It is an arithmetic number, because the mean of its divisors is an integer number (866712852720).

Almost surely, 2^{21611770701050} is an apocalyptic number.

21611770701050 is a deficient number, since it is larger than the sum of its proper divisors (19990446229510).

21611770701050 is a wasteful number, since it uses less digits than its factorization.

21611770701050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6519455 (or 6519450 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 38.

The spelling of 21611770701050 in words is "twenty-one trillion, six hundred eleven billion, seven hundred seventy million, seven hundred one thousand, fifty".