1022421651402 has 16 divisors (see below), whose sum is σ = 2044854261792. Its totient is φ = 340805390640.

The previous prime is 1022421651373. The next prime is 1022421651437. The reversal of 1022421651402 is 2041561242201.

1022421651402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1022421651402.

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, 1242652 + ... + 1894472.

It is an arithmetic number, because the mean of its divisors is an integer number (127803391362).

Almost surely, 2^{1022421651402} is an apocalyptic number.

1022421651402 is an abundant number, since it is smaller than the sum of its proper divisors (1022432610390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022421651402 is a wasteful number, since it uses less digits than its factorization.

1022421651402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913253.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 1022421651402 its reverse (2041561242201), we get a palindrome (3063982893603).

The spelling of 1022421651402 in words is "one trillion, twenty-two billion, four hundred twenty-one million, six hundred fifty-one thousand, four hundred two".