1210221012201 has 16 divisors (see below), whose sum is σ = 1634158786560. Its totient is φ = 796549937040.

The previous prime is 1210221012197. The next prime is 1210221012211. The reversal of 1210221012201 is 1022101220121.

It is not a de Polignac number, because 1210221012201 - 2² = 1210221012197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210221012211) 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, 3721996 + ... + 4034066.

It is an arithmetic number, because the mean of its divisors is an integer number (102134924160).

Almost surely, 2^{1210221012201} is an apocalyptic number.

It is an amenable number.

1210221012201 is a deficient number, since it is larger than the sum of its proper divisors (423937774359).

1210221012201 is a wasteful number, since it uses less digits than its factorization.

1210221012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328516.

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

Adding to 1210221012201 its reverse (1022101220121), we get a palindrome (2232322232322).

The spelling of 1210221012201 in words is "one trillion, two hundred ten billion, two hundred twenty-one million, twelve thousand, two hundred one".