1111212210000 has 100 divisors (see below), whose sum is σ = 3587141272352. Its totient is φ = 296323248000.

The previous prime is 1111212209999. The next prime is 1111212210079. The reversal of 1111212210000 is 122121111.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18490204 + ... + 18550203.

Almost surely, 2^{1111212210000} is an apocalyptic number.

1111212210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111212210000 is an abundant number, since it is smaller than the sum of its proper divisors (2475929062352).

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

1111212210000 is an equidigital number, since it uses as much as digits as its factorization.

1111212210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37040438 (or 37040417 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1111212210000 its reverse (122121111), we get a palindrome (1111334331111).

The spelling of 1111212210000 in words is "one trillion, one hundred eleven billion, two hundred twelve million, two hundred ten thousand".