1202021101210 has 32 divisors (see below), whose sum is σ = 2243562915600. Its totient is φ = 463126110720.

The previous prime is 1202021101201. The next prime is 1202021101247. The reversal of 1202021101210 is 121011202021.

It can be written as a sum of positive squares in 8 ways, for example, as 44260165161 + 1157760936049 = 210381^2 + 1075993^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4800595 + ... + 5044774.

Almost surely, 2^{1202021101210} is an apocalyptic number.

1202021101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1202021101210 is a deficient number, since it is larger than the sum of its proper divisors (1041541814390).

1202021101210 is a wasteful number, since it uses less digits than its factorization.

1202021101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9845826.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1202021101210 its reverse (121011202021), we get a palindrome (1323032303231).

The spelling of 1202021101210 in words is "one trillion, two hundred two billion, twenty-one million, one hundred one thousand, two hundred ten".