2203021111212 has 72 divisors (see below), whose sum is σ = 5676651489600. Its totient is φ = 720170735328.

The previous prime is 2203021111201. The next prime is 2203021111223. The reversal of 2203021111212 is 2121111203022.

It is an interprime number because it is at equal distance from previous prime (2203021111201) and next prime (2203021111223).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 347758 + ... + 2127669.

It is an arithmetic number, because the mean of its divisors is an integer number (78842381800).

Almost surely, 2^{2203021111212} is an apocalyptic number.

It is an amenable number.

2203021111212 is an abundant number, since it is smaller than the sum of its proper divisors (3473630378388).

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

2203021111212 is a wasteful number, since it uses less digits than its factorization.

2203021111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475915 (or 2475910 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2203021111212 its reverse (2121111203022), we get a palindrome (4324132314234).

The spelling of 2203021111212 in words is "two trillion, two hundred three billion, twenty-one million, one hundred eleven thousand, two hundred twelve".