1022012020102 has 4 divisors (see below), whose sum is σ = 1533018030156. Its totient is φ = 511006010050.

The previous prime is 1022012020087. The next prime is 1022012020109. The reversal of 1022012020102 is 2010202102201.

It is a happy number.

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 (1022012020109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255503005024 + ... + 255503005027.

It is an arithmetic number, because the mean of its divisors is an integer number (383254507539).

Almost surely, 2^{1022012020102} is an apocalyptic number.

1022012020102 is a deficient number, since it is larger than the sum of its proper divisors (511006010054).

1022012020102 is an equidigital number, since it uses as much as digits as its factorization.

1022012020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511006010053.

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

Adding to 1022012020102 its reverse (2010202102201), we get a palindrome (3032214122303).

The spelling of 1022012020102 in words is "one trillion, twenty-two billion, twelve million, twenty thousand, one hundred two".