1210222200021 has 8 divisors (see below), whose sum is σ = 1613642565504. Its totient is φ = 806808317280.

The previous prime is 1210222199993. The next prime is 1210222200023. The reversal of 1210222200021 is 1200022220121.

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

It is not a de Polignac number, because 1210222200021 - 2²³ = 1210213811413 is a prime.

It is a super-4 number, since 4×1210222200021⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210222200023) 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, 1166941 + ... + 1944786.

It is an arithmetic number, because the mean of its divisors is an integer number (201705320688).

Almost surely, 2^{1210222200021} is an apocalyptic number.

It is an amenable number.

1210222200021 is a deficient number, since it is larger than the sum of its proper divisors (403420365483).

1210222200021 is a wasteful number, since it uses less digits than its factorization.

1210222200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241371.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1210222200021 its reverse (1200022220121), we get a palindrome (2410244420142).

The spelling of 1210222200021 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, two hundred thousand, twenty-one".