1021201222102 has 4 divisors (see below), whose sum is σ = 1531801833156. Its totient is φ = 510600611050.

The previous prime is 1021201222037. The next prime is 1021201222109. The reversal of 1021201222102 is 2012221021201.

It is a happy number.

1021201222102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021201222109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255300305524 + ... + 255300305527.

It is an arithmetic number, because the mean of its divisors is an integer number (382950458289).

Almost surely, 2^{1021201222102} is an apocalyptic number.

1021201222102 is a deficient number, since it is larger than the sum of its proper divisors (510600611054).

1021201222102 is an equidigital number, since it uses as much as digits as its factorization.

1021201222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510600611053.

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

Adding to 1021201222102 its reverse (2012221021201), we get a palindrome (3033422243303).

The spelling of 1021201222102 in words is "one trillion, twenty-one billion, two hundred one million, two hundred twenty-two thousand, one hundred two".