1202120102 has 4 divisors (see below), whose sum is σ = 1803180156. Its totient is φ = 601060050.

The previous prime is 1202120089. The next prime is 1202120119. The reversal of 1202120102 is 2010212021.

It is a happy number.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 300530024 + ... + 300530027.

It is an arithmetic number, because the mean of its divisors is an integer number (450795039).

Almost surely, 2^1202120102 is an apocalyptic number.

1202120102 is a deficient number, since it is larger than the sum of its proper divisors (601060054).

1202120102 is an equidigital number, since it uses as much as digits as its factorization.

1202120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601060053.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1202120102 is about 34671.6036837064. The cubic root of 1202120102 is about 1063.2840189217.

Adding to 1202120102 its reverse (2010212021), we get a palindrome (3212332123).

It can be divided in two parts, 12021 and 20102, that multiplied together give a palindrome (241646142).

The spelling of 1202120102 in words is "one billion, two hundred two million, one hundred twenty thousand, one hundred two".