111212020002 has 8 divisors (see below), whose sum is σ = 222424040016. Its totient is φ = 37070673332.

The previous prime is 111212019983. The next prime is 111212020033. The reversal of 111212020002 is 200020212111.

It is a sphenic number, since it is the product of 3 distinct primes.

111212020002 is an admirable number.

It is a super-2 number, since 2×111212020002² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111212020002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9267668328 + ... + 9267668339.

It is an arithmetic number, because the mean of its divisors is an integer number (27803005002).

Almost surely, 2^111212020002 is an apocalyptic number.

111212020002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111212020002 is a wasteful number, since it uses less digits than its factorization.

111212020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18535336672.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111212020002 its reverse (200020212111), we get a palindrome (311232232113).

The spelling of 111212020002 in words is "one hundred eleven billion, two hundred twelve million, twenty thousand, two".