1202120121011 has 4 divisors (see below), whose sum is σ = 1204510022352. Its totient is φ = 1199730219672.

The previous prime is 1202120120977. The next prime is 1202120121019. The reversal of 1202120121011 is 1101210212021.

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 1202120121011 - 2¹⁰ = 1202120119987 is a prime.

It is a super-3 number, since 3×1202120121011³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202120121019) 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, 1194949916 + ... + 1194950921.

It is an arithmetic number, because the mean of its divisors is an integer number (301127505588).

Almost surely, 2^{1202120121011} is an apocalyptic number.

1202120121011 is a deficient number, since it is larger than the sum of its proper divisors (2389901341).

1202120121011 is an equidigital number, since it uses as much as digits as its factorization.

1202120121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389901340.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1202120121011 its reverse (1101210212021), we get a palindrome (2303330333032).

The spelling of 1202120121011 in words is "one trillion, two hundred two billion, one hundred twenty million, one hundred twenty-one thousand, eleven".