1210211212001 has 8 divisors (see below), whose sum is σ = 1320307560000. Its totient is φ = 1100127721840.

The previous prime is 1210211211961. The next prime is 1210211212061. The reversal of 1210211212001 is 1002121120121.

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

It is a cyclic number.

It is not a de Polignac number, because 1210211212001 - 2²² = 1210207017697 is a prime.

It is a super-2 number, since 2×1210211212001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1210211212061) 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, 3017126 + ... + 3394623.

It is an arithmetic number, because the mean of its divisors is an integer number (165038445000).

Almost surely, 2^{1210211212001} is an apocalyptic number.

1210211212001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1210211212001 is a deficient number, since it is larger than the sum of its proper divisors (110096347999).

1210211212001 is a wasteful number, since it uses less digits than its factorization.

1210211212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6428919.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1210211212001 its reverse (1002121120121), we get a palindrome (2212332332122).

The spelling of 1210211212001 in words is "one trillion, two hundred ten billion, two hundred eleven million, two hundred twelve thousand, one".