1021222100022 has 16 divisors (see below), whose sum is σ = 2075926892592. Its totient is φ = 334826917920.

The previous prime is 1021222100011. The next prime is 1021222100051. The reversal of 1021222100022 is 2200012221201.

It is a junction number, because it is equal to n+sod(n) for n = 1021222099974 and 1021222100010.

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, 1395111793 + ... + 1395112524.

It is an arithmetic number, because the mean of its divisors is an integer number (129745430787).

Almost surely, 2^{1021222100022} is an apocalyptic number.

1021222100022 is an abundant number, since it is smaller than the sum of its proper divisors (1054704792570).

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

1021222100022 is a wasteful number, since it uses less digits than its factorization.

1021222100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790224383.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1021222100022 its reverse (2200012221201), we get a palindrome (3221234321223).

The spelling of 1021222100022 in words is "one trillion, twenty-one billion, two hundred twenty-two million, one hundred thousand, twenty-two".