266120561114121 has 32 divisors (see below), whose sum is σ = 407947976835840. Its totient is φ = 151159445369856.

The previous prime is 266120561114101. The next prime is 266120561114153. The reversal of 266120561114121 is 121411165021662.

It is a happy number.

It is not a de Polignac number, because 266120561114121 - 2⁷ = 266120561113993 is a prime.

It is a super-2 number, since 2×266120561114121² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 266120561114121.

It is not an unprimeable number, because it can be changed into a prime (266120561114101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41877276 + ... + 47811581.

It is an arithmetic number, because the mean of its divisors is an integer number (12748374276120).

Almost surely, 2^{266120561114121} is an apocalyptic number.

266120561114121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

266120561114121 is a deficient number, since it is larger than the sum of its proper divisors (141827415721719).

266120561114121 is a wasteful number, since it uses less digits than its factorization.

266120561114121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89689713.

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 266120561114121 in words is "two hundred sixty-six trillion, one hundred twenty billion, five hundred sixty-one million, one hundred fourteen thousand, one hundred twenty-one".