121000252711 has 4 divisors (see below), whose sum is σ = 130307964472. Its totient is φ = 111692540952.

The previous prime is 121000252697. The next prime is 121000252721. The reversal of 121000252711 is 117252000121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121000252711 - 2²¹ = 120998155559 is a prime.

It is a super-2 number, since 2×121000252711² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000252721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4653855861 + ... + 4653855886.

It is an arithmetic number, because the mean of its divisors is an integer number (32576991118).

Almost surely, 2^121000252711 is an apocalyptic number.

121000252711 is a deficient number, since it is larger than the sum of its proper divisors (9307711761).

121000252711 is an equidigital number, since it uses as much as digits as its factorization.

121000252711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9307711760.

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 121000252711 its reverse (117252000121), we get a palindrome (238252252832).

The spelling of 121000252711 in words is "one hundred twenty-one billion, two hundred fifty-two thousand, seven hundred eleven".