201212020102 has 4 divisors (see below), whose sum is σ = 301818030156. Its totient is φ = 100606010050.

The previous prime is 201212020081. The next prime is 201212020147. The reversal of 201212020102 is 201020212102.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 50303005024 + ... + 50303005027.

It is an arithmetic number, because the mean of its divisors is an integer number (75454507539).

Almost surely, 2^201212020102 is an apocalyptic number.

201212020102 is a deficient number, since it is larger than the sum of its proper divisors (100606010054).

201212020102 is a wasteful number, since it uses less digits than its factorization.

201212020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100606010053.

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

Adding to 201212020102 its reverse (201020212102), we get a palindrome (402232232204).

The spelling of 201212020102 in words is "two hundred one billion, two hundred twelve million, twenty thousand, one hundred two".