10021101221010 has 128 divisors (see below), whose sum is σ = 27085628620800. Its totient is φ = 2350799942400.

The previous prime is 10021101221003. The next prime is 10021101221023. The reversal of 10021101221010 is 1012210112001.

It is a super-2 number, since 2×10021101221010² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154941939 + ... + 155006601.

It is an arithmetic number, because the mean of its divisors is an integer number (211606473600).

Almost surely, 2^{10021101221010} is an apocalyptic number.

10021101221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10021101221010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13542814310400).

10021101221010 is an abundant number, since it is smaller than the sum of its proper divisors (17064527399790).

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

10021101221010 is a wasteful number, since it uses less digits than its factorization.

10021101221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79864.

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

Adding to 10021101221010 its reverse (1012210112001), we get a palindrome (11033311333011).

The spelling of 10021101221010 in words is "ten trillion, twenty-one billion, one hundred one million, two hundred twenty-one thousand, ten".