1212210212001 has 16 divisors (see below), whose sum is σ = 1618805578944. Its totient is φ = 806877699264.

The previous prime is 1212210211991. The next prime is 1212210212011. The reversal of 1212210212001 is 1002120122121.

It is an interprime number because it is at equal distance from previous prime (1212210211991) and next prime (1212210212011).

It is not a de Polignac number, because 1212210212001 - 2¹¹ = 1212210209953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212210212011) 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, 37348086 + ... + 37380528.

It is an arithmetic number, because the mean of its divisors is an integer number (101175348684).

Almost surely, 2^{1212210212001} is an apocalyptic number.

It is an amenable number.

1212210212001 is a deficient number, since it is larger than the sum of its proper divisors (406595366943).

1212210212001 is a wasteful number, since it uses less digits than its factorization.

1212210212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51520.

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

Adding to 1212210212001 its reverse (1002120122121), we get a palindrome (2214330334122).

The spelling of 1212210212001 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred twelve thousand, one".