1201011001210 has 32 divisors (see below), whose sum is σ = 2180023129152. Its totient is φ = 476364944640.

The previous prime is 1201011001163. The next prime is 1201011001217. The reversal of 1201011001210 is 121001101021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1201011001217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1323442 + ... + 2038018.

It is an arithmetic number, because the mean of its divisors is an integer number (68125722786).

Almost surely, 2^{1201011001210} is an apocalyptic number.

1201011001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201011001210 is a deficient number, since it is larger than the sum of its proper divisors (979012127942).

1201011001210 is a wasteful number, since it uses less digits than its factorization.

1201011001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715998.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1201011001210 its reverse (121001101021), we get a palindrome (1322012102231).

The spelling of 1201011001210 in words is "one trillion, two hundred one billion, eleven million, one thousand, two hundred ten".