1201011111002 has 4 divisors (see below), whose sum is σ = 1801516666506. Its totient is φ = 600505555500.

The previous prime is 1201011110983. The next prime is 1201011111023. The reversal of 1201011111002 is 2001111101021.

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., 1105170715441 + 95840395561 = 1051271^2 + 309581^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300252777749 + ... + 300252777752.

Almost surely, 2^{1201011111002} is an apocalyptic number.

1201011111002 is a deficient number, since it is larger than the sum of its proper divisors (600505555504).

1201011111002 is an equidigital number, since it uses as much as digits as its factorization.

1201011111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600505555503.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1201011111002 its reverse (2001111101021), we get a palindrome (3202122212023).

The spelling of 1201011111002 in words is "one trillion, two hundred one billion, eleven million, one hundred eleven thousand, two".