210022101211121 has 8 divisors (see below), whose sum is σ = 222397855302600. Its totient is φ = 197648737435648.

The previous prime is 210022101211103. The next prime is 210022101211183. The reversal of 210022101211121 is 121112101220012.

It can be written as a sum of positive squares in 4 ways, for example, as 784747939600 + 209237353271521 = 885860^2 + 14465039^2 .

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

It is not a de Polignac number, because 210022101211121 - 2³⁴ = 210004921341937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210022101211121.

It is not an unprimeable number, because it can be changed into a prime (210022101210121) 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, 597398096 + ... + 597749553.

It is an arithmetic number, because the mean of its divisors is an integer number (27799731912825).

Almost surely, 2^{210022101211121} is an apocalyptic number.

It is an amenable number.

210022101211121 is a deficient number, since it is larger than the sum of its proper divisors (12375754091479).

210022101211121 is a wasteful number, since it uses less digits than its factorization.

210022101211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195158003.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210022101211121 its reverse (121112101220012), we get a palindrome (331134202431133).

The spelling of 210022101211121 in words is "two hundred ten trillion, twenty-two billion, one hundred one million, two hundred eleven thousand, one hundred twenty-one".