1201121102010 has 32 divisors (see below), whose sum is σ = 2882809173312. Its totient is φ = 320285790720.

The previous prime is 1201121101997. The next prime is 1201121102023. The reversal of 1201121102010 is 102011211021.

It is an interprime number because it is at equal distance from previous prime (1201121101997) and next prime (1201121102023).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70039 + ... + 1551498.

It is an arithmetic number, because the mean of its divisors is an integer number (90087786666).

Almost surely, 2^{1201121102010} is an apocalyptic number.

1201121102010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201121102010 is an abundant number, since it is smaller than the sum of its proper divisors (1681688071302).

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

1201121102010 is a wasteful number, since it uses less digits than its factorization.

1201121102010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646238.

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

Adding to 1201121102010 its reverse (102011211021), we get a palindrome (1303132313031).

The spelling of 1201121102010 in words is "one trillion, two hundred one billion, one hundred twenty-one million, one hundred two thousand, ten".