101221001011210 has 8 divisors (see below), whose sum is σ = 182197801820196. Its totient is φ = 40488400404480.

The previous prime is 101221001011201. The next prime is 101221001011243. The reversal of 101221001011210 is 12110100122101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 90875019399921 + 10345981611289 = 9532839^2 + 3216517^2 .

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

It is a super-2 number, since 2×101221001011210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5061050050551 + ... + 5061050050570.

Almost surely, 2^{101221001011210} is an apocalyptic number.

101221001011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101221001011210 is a deficient number, since it is larger than the sum of its proper divisors (80976800808986).

101221001011210 is a wasteful number, since it uses less digits than its factorization.

101221001011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122100101128.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101221001011210 its reverse (12110100122101), we get a palindrome (113331101133311).

The spelling of 101221001011210 in words is "one hundred one trillion, two hundred twenty-one billion, one million, eleven thousand, two hundred ten".