101021201221210 has 16 divisors (see below), whose sum is σ = 181839435365736. Its totient is φ = 40408197562368.

The previous prime is 101021201221139. The next prime is 101021201221231. The reversal of 101021201221210 is 12122102120101.

It can be written as a sum of positive squares in 4 ways, for example, as 41995493434449 + 59025707786761 = 6480393^2 + 7682819^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33863079 + ... + 36725338.

Almost surely, 2^{101021201221210} is an apocalyptic number.

101021201221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101021201221210 is a deficient number, since it is larger than the sum of its proper divisors (80818234144526).

101021201221210 is a wasteful number, since it uses less digits than its factorization.

101021201221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70731537.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101021201221210 its reverse (12122102120101), we get a palindrome (113143303341311).

The spelling of 101021201221210 in words is "one hundred one trillion, twenty-one billion, two hundred one million, two hundred twenty-one thousand, two hundred ten".