1022211121213 has 4 divisors (see below), whose sum is σ = 1076011706560. Its totient is φ = 968410535868.

The previous prime is 1022211121187. The next prime is 1022211121241. The reversal of 1022211121213 is 3121211122201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1022211121213 - 2⁵ = 1022211121181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 53800585327 = 1022211121213 / (1 + 0 + 2 + 2 + 2 + 1 + 1 + 1 + 2 + 1 + 2 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028211121213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26900292645 + ... + 26900292682.

It is an arithmetic number, because the mean of its divisors is an integer number (269002926640).

Almost surely, 2^{1022211121213} is an apocalyptic number.

It is an amenable number.

1022211121213 is a deficient number, since it is larger than the sum of its proper divisors (53800585347).

1022211121213 is an equidigital number, since it uses as much as digits as its factorization.

1022211121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53800585346.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1022211121213 its reverse (3121211122201), we get a palindrome (4143422243414).

The spelling of 1022211121213 in words is "one trillion, twenty-two billion, two hundred eleven million, one hundred twenty-one thousand, two hundred thirteen".