1212110001002 has 4 divisors (see below), whose sum is σ = 1818165001506. Its totient is φ = 606055000500.

The previous prime is 1212110000957. The next prime is 1212110001029. The reversal of 1212110001002 is 2001000112121.

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., 1062736253881 + 149373747121 = 1030891^2 + 386489^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303027500249 + ... + 303027500252.

Almost surely, 2^{1212110001002} is an apocalyptic number.

1212110001002 is a deficient number, since it is larger than the sum of its proper divisors (606055000504).

1212110001002 is an equidigital number, since it uses as much as digits as its factorization.

1212110001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606055000503.

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

Adding to 1212110001002 its reverse (2001000112121), we get a palindrome (3213110113123).

The spelling of 1212110001002 in words is "one trillion, two hundred twelve billion, one hundred ten million, one thousand, two".