111122021002 has 4 divisors (see below), whose sum is σ = 166683031506. Its totient is φ = 55561010500.

The previous prime is 111122020987. The next prime is 111122021057. The reversal of 111122021002 is 200120221111.

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

It can be written as a sum of positive squares in only one way, i.e., 101940356961 + 9181664041 = 319281^2 + 95821^2 .

It is a super-3 number, since 3×111122021002³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27780505249 + ... + 27780505252.

Almost surely, 2^111122021002 is an apocalyptic number.

111122021002 is a deficient number, since it is larger than the sum of its proper divisors (55561010504).

111122021002 is an equidigital number, since it uses as much as digits as its factorization.

111122021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55561010503.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111122021002 its reverse (200120221111), we get a palindrome (311242242113).

The spelling of 111122021002 in words is "one hundred eleven billion, one hundred twenty-two million, twenty-one thousand, two".