121502041204011 has 16 divisors (see below), whose sum is σ = 180480485609760. Its totient is φ = 72192194242560.

The previous prime is 121502041204009. The next prime is 121502041204013. The reversal of 121502041204011 is 110402140205121.

It is an interprime number because it is at equal distance from previous prime (121502041204009) and next prime (121502041204013).

It is not a de Polignac number, because 121502041204011 - 2¹ = 121502041204009 is a prime.

It is a super-4 number, since 4×121502041204011⁴ (a number of 57 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (121502041204013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53714429110 + ... + 53714431371.

It is an arithmetic number, because the mean of its divisors is an integer number (11280030350610).

Almost surely, 2^{121502041204011} is an apocalyptic number.

121502041204011 is a deficient number, since it is larger than the sum of its proper divisors (58978444405749).

121502041204011 is a wasteful number, since it uses less digits than its factorization.

121502041204011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107428860526.

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 121502041204011 its reverse (110402140205121), we get a palindrome (231904181409132).

The spelling of 121502041204011 in words is "one hundred twenty-one trillion, five hundred two billion, forty-one million, two hundred four thousand, eleven".