1202121101101 has 4 divisors (see below), whose sum is σ = 1204859418400. Its totient is φ = 1199382783804.

The previous prime is 1202121101089. The next prime is 1202121101107. The reversal of 1202121101101 is 1011011212021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1202121101101 - 2²¹ = 1202119003949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202121101107) 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, 1369157991 + ... + 1369158868.

It is an arithmetic number, because the mean of its divisors is an integer number (301214854600).

Almost surely, 2^{1202121101101} is an apocalyptic number.

It is an amenable number.

1202121101101 is a deficient number, since it is larger than the sum of its proper divisors (2738317299).

1202121101101 is an equidigital number, since it uses as much as digits as its factorization.

1202121101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738317298.

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

Adding to 1202121101101 its reverse (1011011212021), we get a palindrome (2213132313122).

The spelling of 1202121101101 in words is "one trillion, two hundred two billion, one hundred twenty-one million, one hundred one thousand, one hundred one".