1212021101102 has 16 divisors (see below), whose sum is σ = 2081107098240. Its totient is φ = 518598454968.

The previous prime is 1212021101101. The next prime is 1212021101107. The reversal of 1212021101102 is 2011011202121.

It is a super-2 number, since 2×1212021101102² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212021101101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69921008 + ... + 69938339.

It is an arithmetic number, because the mean of its divisors is an integer number (130069193640).

Almost surely, 2^{1212021101102} is an apocalyptic number.

1212021101102 is a deficient number, since it is larger than the sum of its proper divisors (869085997138).

1212021101102 is a wasteful number, since it uses less digits than its factorization.

1212021101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139859975.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212021101102 its reverse (2011011202121), we get a palindrome (3223032303223).

The spelling of 1212021101102 in words is "one trillion, two hundred twelve billion, twenty-one million, one hundred one thousand, one hundred two".