1200011121002 has 4 divisors (see below), whose sum is σ = 1800016681506. Its totient is φ = 600005560500.

The previous prime is 1200011120993. The next prime is 1200011121091. The reversal of 1200011121002 is 2001211100021.

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., 994884558721 + 205126562281 = 997439^2 + 452909^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300002780249 + ... + 300002780252.

Almost surely, 2^{1200011121002} is an apocalyptic number.

1200011121002 is a deficient number, since it is larger than the sum of its proper divisors (600005560504).

1200011121002 is an equidigital number, since it uses as much as digits as its factorization.

1200011121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600005560503.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1200011121002 its reverse (2001211100021), we get a palindrome (3201222221023).

The spelling of 1200011121002 in words is "one trillion, two hundred billion, eleven million, one hundred twenty-one thousand, two".