21061127109266 has 8 divisors (see below), whose sum is σ = 31886940109680. Its totient is φ = 10432147072708.

The previous prime is 21061127109259. The next prime is 21061127109271. The reversal of 21061127109266 is 66290172116012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21061127109266² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49208240696 + ... + 49208241123.

It is an arithmetic number, because the mean of its divisors is an integer number (3985867513710).

Almost surely, 2^{21061127109266} is an apocalyptic number.

21061127109266 is a deficient number, since it is larger than the sum of its proper divisors (10825813000414).

21061127109266 is a wasteful number, since it uses less digits than its factorization.

21061127109266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98416481928.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 21061127109266 in words is "twenty-one trillion, sixty-one billion, one hundred twenty-seven million, one hundred nine thousand, two hundred sixty-six".