1212201101002 has 4 divisors (see below), whose sum is σ = 1818301651506. Its totient is φ = 606100550500.

The previous prime is 1212201100987. The next prime is 1212201101009. The reversal of 1212201101002 is 2001011022121.

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., 1209892202401 + 2308898601 = 1099951^2 + 48051^2 .

It is a super-2 number, since 2×1212201101002² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212201101009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303050275249 + ... + 303050275252.

Almost surely, 2^{1212201101002} is an apocalyptic number.

1212201101002 is a deficient number, since it is larger than the sum of its proper divisors (606100550504).

1212201101002 is an equidigital number, since it uses as much as digits as its factorization.

1212201101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606100550503.

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

Adding to 1212201101002 its reverse (2001011022121), we get a palindrome (3213212123123).

The spelling of 1212201101002 in words is "one trillion, two hundred twelve billion, two hundred one million, one hundred one thousand, two".