1020002101222 has 16 divisors (see below), whose sum is σ = 1647792281520. Its totient is φ = 470742606432.

The previous prime is 1020002101201. The next prime is 1020002101267. The reversal of 1020002101222 is 2221012000201.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694248 + ... + 1588075.

It is an arithmetic number, because the mean of its divisors is an integer number (102987017595).

Almost surely, 2^{1020002101222} is an apocalyptic number.

1020002101222 is a deficient number, since it is larger than the sum of its proper divisors (627790180298).

1020002101222 is a wasteful number, since it uses less digits than its factorization.

1020002101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299527.

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

Adding to 1020002101222 its reverse (2221012000201), we get a palindrome (3241014101423).

The spelling of 1020002101222 in words is "one trillion, twenty billion, two million, one hundred one thousand, two hundred twenty-two".