1212022001001 has 16 divisors (see below), whose sum is σ = 1847287912448. Its totient is φ = 692435034000.

The previous prime is 1212022000939. The next prime is 1212022001063. The reversal of 1212022001001 is 1001002202121.

It is an interprime number because it is at equal distance from previous prime (1212022000939) and next prime (1212022001063).

It is not a de Polignac number, because 1212022001001 - 2³¹ = 1209874517353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212022001081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6106945 + ... + 6302286.

It is an arithmetic number, because the mean of its divisors is an integer number (115455494528).

Almost surely, 2^{1212022001001} is an apocalyptic number.

It is an amenable number.

1212022001001 is a deficient number, since it is larger than the sum of its proper divisors (635265911447).

1212022001001 is a wasteful number, since it uses less digits than its factorization.

1212022001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12413892.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1212022001001 its reverse (1001002202121), we get a palindrome (2213024203122).

The spelling of 1212022001001 in words is "one trillion, two hundred twelve billion, twenty-two million, one thousand, one".