221010001121010 has 32 divisors (see below), whose sum is σ = 539414240028480. Its totient is φ = 57937085039168.

The previous prime is 221010001121009. The next prime is 221010001121011. The reversal of 221010001121010 is 10121100010122.

It is an interprime number because it is at equal distance from previous prime (221010001121009) and next prime (221010001121011).

It is not an unprimeable number, because it can be changed into a prime (221010001121011) 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, 62432201937 + ... + 62432205476.

It is an arithmetic number, because the mean of its divisors is an integer number (16856695000890).

Almost surely, 2^{221010001121010} is an apocalyptic number.

221010001121010 is an abundant number, since it is smaller than the sum of its proper divisors (318404238907470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221010001121010 is a wasteful number, since it uses less digits than its factorization.

221010001121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124864407482.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 221010001121010 its reverse (10121100010122), we get a palindrome (231131101131132).

The spelling of 221010001121010 in words is "two hundred twenty-one trillion, ten billion, one million, one hundred twenty-one thousand, ten".