120121210001011 has 8 divisors (see below), whose sum is σ = 122091445339344. Its totient is φ = 118151008055520.

The previous prime is 120121210000963. The next prime is 120121210001053. The reversal of 120121210001011 is 110100012121021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 120121210001011 - 2²⁷ = 120121075783283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120121210000982 and 120121210001000.

It is not an unprimeable number, because it can be changed into a prime (120121210001311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042780 + ... + 15534793.

It is an arithmetic number, because the mean of its divisors is an integer number (15261430667418).

Almost surely, 2^{120121210001011} is an apocalyptic number.

120121210001011 is a deficient number, since it is larger than the sum of its proper divisors (1970235338333).

120121210001011 is a wasteful number, since it uses less digits than its factorization.

120121210001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16696421.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120121210001011 its reverse (110100012121021), we get a palindrome (230221222122032).

The spelling of 120121210001011 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred ten million, one thousand, eleven".