1021101212222 has 16 divisors (see below), whose sum is σ = 1885109930592. Its totient is φ = 403952127840.

The previous prime is 1021101212191. The next prime is 1021101212227. The reversal of 1021101212222 is 2222121011201.

1021101212222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1021101212222³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1021101212222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021101212227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2805222929 + ... + 2805223292.

It is an arithmetic number, because the mean of its divisors is an integer number (117819370662).

Almost surely, 2^{1021101212222} is an apocalyptic number.

1021101212222 is a deficient number, since it is larger than the sum of its proper divisors (864008718370).

1021101212222 is a wasteful number, since it uses less digits than its factorization.

1021101212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610446243.

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

Adding to 1021101212222 its reverse (2222121011201), we get a palindrome (3243222223423).

The spelling of 1021101212222 in words is "one trillion, twenty-one billion, one hundred one million, two hundred twelve thousand, two hundred twenty-two".