2111221200002 has 4 divisors (see below), whose sum is σ = 3166831800006. Its totient is φ = 1055610600000.

The previous prime is 2111221199981. The next prime is 2111221200031. The reversal of 2111221200002 is 2000021221112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2097164489281 + 14056710721 = 1448159^2 + 118561^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2111221200002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527805299999 + ... + 527805300002.

Almost surely, 2^{2111221200002} is an apocalyptic number.

2111221200002 is a deficient number, since it is larger than the sum of its proper divisors (1055610600004).

2111221200002 is a wasteful number, since it uses less digits than its factorization.

2111221200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055610600003.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2111221200002 its reverse (2000021221112), we get a palindrome (4111242421114).

The spelling of 2111221200002 in words is "two trillion, one hundred eleven billion, two hundred twenty-one million, two hundred thousand, two".