1212020111002 has 32 divisors (see below), whose sum is σ = 1962400970880. Its totient is φ = 559537989120.

The previous prime is 1212020110991. The next prime is 1212020111009. The reversal of 1212020111002 is 2001110202121.

It is not an unprimeable number, because it can be changed into a prime (1212020111009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1124043 + ... + 1920289.

It is an arithmetic number, because the mean of its divisors is an integer number (61325030340).

Almost surely, 2^{1212020111002} is an apocalyptic number.

1212020111002 is a deficient number, since it is larger than the sum of its proper divisors (750380859878).

1212020111002 is a wasteful number, since it uses less digits than its factorization.

1212020111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797286.

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

Adding to 1212020111002 its reverse (2001110202121), we get a palindrome (3213130313123).

The spelling of 1212020111002 in words is "one trillion, two hundred twelve billion, twenty million, one hundred eleven thousand, two".