1201021121102 has 32 divisors (see below), whose sum is σ = 1984560963840. Its totient is φ = 540571374720.

The previous prime is 1201021121077. The next prime is 1201021121123. The reversal of 1201021121102 is 2011211201021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47888438 + ... + 47913510.

It is an arithmetic number, because the mean of its divisors is an integer number (62017530120).

Almost surely, 2^{1201021121102} is an apocalyptic number.

1201021121102 is a deficient number, since it is larger than the sum of its proper divisors (783539842738).

1201021121102 is a wasteful number, since it uses less digits than its factorization.

1201021121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46328.

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

Adding to 1201021121102 its reverse (2011211201021), we get a palindrome (3212232322123).

It can be divided in two parts, 12010 and 21121102, that added together give a palindrome (21133112).

The spelling of 1201021121102 in words is "one trillion, two hundred one billion, twenty-one million, one hundred twenty-one thousand, one hundred two".