1212020002102 has 32 divisors (see below), whose sum is σ = 2247609434112. Its totient is φ = 477330287904.

The previous prime is 1212020002079. The next prime is 1212020002117. The reversal of 1212020002102 is 2012000202121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14890918 + ... + 14972089.

It is an arithmetic number, because the mean of its divisors is an integer number (70237794816).

Almost surely, 2^{1212020002102} is an apocalyptic number.

1212020002102 is a deficient number, since it is larger than the sum of its proper divisors (1035589432010).

1212020002102 is a wasteful number, since it uses less digits than its factorization.

1212020002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29863252.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1212020002102 its reverse (2012000202121), we get a palindrome (3224020204223).

The spelling of 1212020002102 in words is "one trillion, two hundred twelve billion, twenty million, two thousand, one hundred two".