1212202211002 has 8 divisors (see below), whose sum is σ = 1818309280212. Its totient is φ = 606099117600.

The previous prime is 1212202210993. The next prime is 1212202211009. The reversal of 1212202211002 is 2001122022121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1183698304441 + 28503906561 = 1087979^2 + 168831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1212202211009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53899 + ... + 1557982.

Almost surely, 2^{1212202211002} is an apocalyptic number.

1212202211002 is a deficient number, since it is larger than the sum of its proper divisors (606107069210).

1212202211002 is a wasteful number, since it uses less digits than its factorization.

1212202211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987904.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212202211002 its reverse (2001122022121), we get a palindrome (3213324233123).

The spelling of 1212202211002 in words is "one trillion, two hundred twelve billion, two hundred two million, two hundred eleven thousand, two".