1222210121101 has 4 divisors (see below), whose sum is σ = 1286536969600. Its totient is φ = 1157883272604.

The previous prime is 1222210121059. The next prime is 1222210121113. The reversal of 1222210121101 is 1011210122221.

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 a cyclic number.

It is not a de Polignac number, because 1222210121101 - 2¹⁹ = 1222209596813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222210821101) 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, 32163424221 + ... + 32163424258.

It is an arithmetic number, because the mean of its divisors is an integer number (321634242400).

Almost surely, 2^{1222210121101} is an apocalyptic number.

It is an amenable number.

1222210121101 is a deficient number, since it is larger than the sum of its proper divisors (64326848499).

1222210121101 is an equidigital number, since it uses as much as digits as its factorization.

1222210121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64326848498.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1222210121101 its reverse (1011210122221), we get a palindrome (2233420243322).

The spelling of 1222210121101 in words is "one trillion, two hundred twenty-two billion, two hundred ten million, one hundred twenty-one thousand, one hundred one".