1021012222222 has 8 divisors (see below), whose sum is σ = 1531561145616. Its totient is φ = 510491840352.

The previous prime is 1021012222193. The next prime is 1021012222271. The reversal of 1021012222222 is 2222222101201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1021012222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7045723 + ... + 7189174.

It is an arithmetic number, because the mean of its divisors is an integer number (191445143202).

Almost surely, 2^{1021012222222} is an apocalyptic number.

1021012222222 is a deficient number, since it is larger than the sum of its proper divisors (510548923394).

1021012222222 is a wasteful number, since it uses less digits than its factorization.

1021012222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14270762.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1021012222222 its reverse (2222222101201), we get a palindrome (3243234323423).

The spelling of 1021012222222 in words is "one trillion, twenty-one billion, twelve million, two hundred twenty-two thousand, two hundred twenty-two".