210002121001222 has 128 divisors (see below), whose sum is σ = 360780791040000. Its totient is φ = 90797511168000.

The previous prime is 210002121001213. The next prime is 210002121001223. The reversal of 210002121001222 is 222100121200012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210002121001196 and 210002121001205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210002121001223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53449252554 + ... + 53449256482.

It is an arithmetic number, because the mean of its divisors is an integer number (2818599930000).

Almost surely, 2^{210002121001222} is an apocalyptic number.

210002121001222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210002121001222 is a deficient number, since it is larger than the sum of its proper divisors (150778670038778).

210002121001222 is a wasteful number, since it uses less digits than its factorization.

210002121001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210002121001222 its reverse (222100121200012), we get a palindrome (432102242201234).

The spelling of 210002121001222 in words is "two hundred ten trillion, two billion, one hundred twenty-one million, one thousand, two hundred twenty-two".