1212110222001 has 8 divisors (see below), whose sum is σ = 1847025100224. Its totient is φ = 692634412560.

The previous prime is 1212110221999. The next prime is 1212110222021. The reversal of 1212110222001 is 1002220112121.

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

It is not a de Polignac number, because 1212110222001 - 2¹ = 1212110221999 is a prime.

It is a super-2 number, since 2×1212110222001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212110222021) 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, 28859767170 + ... + 28859767211.

It is an arithmetic number, because the mean of its divisors is an integer number (230878137528).

Almost surely, 2^{1212110222001} is an apocalyptic number.

It is an amenable number.

1212110222001 is a deficient number, since it is larger than the sum of its proper divisors (634914878223).

1212110222001 is an equidigital number, since it uses as much as digits as its factorization.

1212110222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57719534391.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212110222001 its reverse (1002220112121), we get a palindrome (2214330334122).

The spelling of 1212110222001 in words is "one trillion, two hundred twelve billion, one hundred ten million, two hundred twenty-two thousand, one".