1202101121 has 4 divisors (see below), whose sum is σ = 1294570452. Its totient is φ = 1109631792.

The previous prime is 1202101111. The next prime is 1202101129. The reversal of 1202101121 is 1211012021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 204804721 + 997296400 = 14311^2 + 31580^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202101121 - 2⁶ = 1202101057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1202101129) 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, 46234646 + ... + 46234671.

It is an arithmetic number, because the mean of its divisors is an integer number (323642613).

Almost surely, 2^1202101121 is an apocalyptic number.

It is an amenable number.

1202101121 is a deficient number, since it is larger than the sum of its proper divisors (92469331).

1202101121 is an equidigital number, since it uses as much as digits as its factorization.

1202101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92469330.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1202101121 is about 34671.3299571851. The cubic root of 1202101121 is about 1063.2784226145.

Adding to 1202101121 its reverse (1211012021), we get a palindrome (2413113142).

The spelling of 1202101121 in words is "one billion, two hundred two million, one hundred one thousand, one hundred twenty-one".