1201950220193 has 16 divisors (see below), whose sum is σ = 1317363011280. Its totient is φ = 1091554093056.

The previous prime is 1201950220187. The next prime is 1201950220249. The reversal of 1201950220193 is 3910220591021.

It can be written as a sum of positive squares in 8 ways, for example, as 4289202064 + 1197661018129 = 65492^2 + 1094377^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201950220193 - 2¹² = 1201950216097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201950225193) by changing a digit.

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, 24005 + ... + 1550637.

It is an arithmetic number, because the mean of its divisors is an integer number (82335188205).

Almost surely, 2^{1201950220193} is an apocalyptic number.

It is an amenable number.

1201950220193 is a deficient number, since it is larger than the sum of its proper divisors (115412791087).

1201950220193 is a wasteful number, since it uses less digits than its factorization.

1201950220193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528276.

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 1201950220193 in words is "one trillion, two hundred one billion, nine hundred fifty million, two hundred twenty thousand, one hundred ninety-three".