1201111220002 has 4 divisors (see below), whose sum is σ = 1801666830006. Its totient is φ = 600555610000.

The previous prime is 1201111219999. The next prime is 1201111220003. The reversal of 1201111220002 is 2000221111021.

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., 1145801117241 + 55310102761 = 1070421^2 + 235181^2 .

It is not an unprimeable number, because it can be changed into a prime (1201111220003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300277804999 + ... + 300277805002.

Almost surely, 2^{1201111220002} is an apocalyptic number.

1201111220002 is a deficient number, since it is larger than the sum of its proper divisors (600555610004).

1201111220002 is an equidigital number, since it uses as much as digits as its factorization.

1201111220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600555610003.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1201111220002 its reverse (2000221111021), we get a palindrome (3201332331023).

The spelling of 1201111220002 in words is "one trillion, two hundred one billion, one hundred eleven million, two hundred twenty thousand, two".