11111212021002 has 32 divisors (see below), whose sum is σ = 22240655391744. Its totient is φ = 3700699100400.

The previous prime is 11111212020983. The next prime is 11111212021031. The reversal of 11111212021002 is 20012021211111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222774127 + ... + 222823997.

It is an arithmetic number, because the mean of its divisors is an integer number (695020480992).

Almost surely, 2^{11111212021002} is an apocalyptic number.

11111212021002 is an abundant number, since it is smaller than the sum of its proper divisors (11129443370742).

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

11111212021002 is a wasteful number, since it uses less digits than its factorization.

11111212021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79594.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11111212021002 its reverse (20012021211111), we get a palindrome (31123233232113).

The spelling of 11111212021002 in words is "eleven trillion, one hundred eleven billion, two hundred twelve million, twenty-one thousand, two".