1021121012222 has 8 divisors (see below), whose sum is σ = 1569039604272. Its totient is φ = 498107810800.

The previous prime is 1021121012213. The next prime is 1021121012231. The reversal of 1021121012222 is 2222101211201.

It is an interprime number because it is at equal distance from previous prime (1021121012213) and next prime (1021121012231).

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 1021121012222.

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, 6226347554 + ... + 6226347717.

It is an arithmetic number, because the mean of its divisors is an integer number (196129950534).

Almost surely, 2^{1021121012222} is an apocalyptic number.

1021121012222 is a deficient number, since it is larger than the sum of its proper divisors (547918592050).

1021121012222 is a wasteful number, since it uses less digits than its factorization.

1021121012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12452695314.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1021121012222 its reverse (2222101211201), we get a palindrome (3243222223423).

The spelling of 1021121012222 in words is "one trillion, twenty-one billion, one hundred twenty-one million, twelve thousand, two hundred twenty-two".