1202021011101 has 4 divisors (see below), whose sum is σ = 1602694681472. Its totient is φ = 801347340732.

The previous prime is 1202021011091. The next prime is 1202021011111. The reversal of 1202021011101 is 1011101202021.

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 an interprime number because it is at equal distance from previous prime (1202021011091) and next prime (1202021011111).

It is not a de Polignac number, because 1202021011101 - 2¹¹ = 1202021009053 is a prime.

It is a super-2 number, since 2×1202021011101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202021011111) 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, 200336835181 + ... + 200336835186.

It is an arithmetic number, because the mean of its divisors is an integer number (400673670368).

Almost surely, 2^{1202021011101} is an apocalyptic number.

It is an amenable number.

1202021011101 is a deficient number, since it is larger than the sum of its proper divisors (400673670371).

1202021011101 is an equidigital number, since it uses as much as digits as its factorization.

1202021011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400673670370.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1202021011101 its reverse (1011101202021), we get a palindrome (2213122213122).

The spelling of 1202021011101 in words is "one trillion, two hundred two billion, twenty-one million, eleven thousand, one hundred one".