1202100021101 has 4 divisors (see below), whose sum is σ = 1373828595552. Its totient is φ = 1030371446652.

The previous prime is 1202100021041. The next prime is 1202100021113. The reversal of 1202100021101 is 1011200012021.

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 1202100021101 - 2⁶ = 1202100021037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202100021191) 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, 85864287215 + ... + 85864287228.

It is an arithmetic number, because the mean of its divisors is an integer number (343457148888).

Almost surely, 2^{1202100021101} is an apocalyptic number.

It is an amenable number.

1202100021101 is a deficient number, since it is larger than the sum of its proper divisors (171728574451).

1202100021101 is an equidigital number, since it uses as much as digits as its factorization.

1202100021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171728574450.

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

Adding to 1202100021101 its reverse (1011200012021), we get a palindrome (2213300033122).

The spelling of 1202100021101 in words is "one trillion, two hundred two billion, one hundred million, twenty-one thousand, one hundred one".