111202120022101 has 4 divisors (see below), whose sum is σ = 111844906843212. Its totient is φ = 110559333200992.

The previous prime is 111202120022069. The next prime is 111202120022249. The reversal of 111202120022101 is 101220021202111.

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 77839135377201 + 33362984644900 = 8822649^2 + 5776070^2 .

It is a cyclic number.

It is not a de Polignac number, because 111202120022101 - 2⁵ = 111202120022069 is a prime.

It is a super-2 number, since 2×111202120022101² (a number of 29 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 (111202120062101) 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, 321393410296 + ... + 321393410641.

It is an arithmetic number, because the mean of its divisors is an integer number (27961226710803).

Almost surely, 2^{111202120022101} is an apocalyptic number.

It is an amenable number.

111202120022101 is a deficient number, since it is larger than the sum of its proper divisors (642786821111).

111202120022101 is an equidigital number, since it uses as much as digits as its factorization.

111202120022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642786821110.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111202120022101 its reverse (101220021202111), we get a palindrome (212422141224212).

The spelling of 111202120022101 in words is "one hundred eleven trillion, two hundred two billion, one hundred twenty million, twenty-two thousand, one hundred one".