111022121002 has 32 divisors (see below), whose sum is σ = 186068703744. Its totient is φ = 49336257600.

The previous prime is 111022120961. The next prime is 111022121003. The reversal of 111022121002 is 200121220111.

It is a super-2 number, since 2×111022121002² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (111022121003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190824 + ... + 508387.

It is an arithmetic number, because the mean of its divisors is an integer number (5814646992).

Almost surely, 2^111022121002 is an apocalyptic number.

111022121002 is a deficient number, since it is larger than the sum of its proper divisors (75046582742).

111022121002 is a wasteful number, since it uses less digits than its factorization.

111022121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699454.

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

Adding to 111022121002 its reverse (200121220111), we get a palindrome (311143341113).

The spelling of 111022121002 in words is "one hundred eleven billion, twenty-two million, one hundred twenty-one thousand, two".